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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en"><italic>Curcuma raktakanda</italic> Induces Apoptosis and Suppresses Migration in Cancer Cells: Role of Reactive Oxygen Species</title><author><name sortKey="Mishra, Shruti" sort="Mishra, Shruti" uniqKey="Mishra S" first="Shruti" last="Mishra">Shruti Mishra</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Verma, Sumit Singh" sort="Verma, Sumit Singh" uniqKey="Verma S" first="Sumit Singh" last="Verma">Sumit Singh Verma</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Rai, Vipin" sort="Rai, Vipin" uniqKey="Rai V" first="Vipin" last="Rai">Vipin Rai</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Awasthee, Nikee" sort="Awasthee, Nikee" uniqKey="Awasthee N" first="Nikee" last="Awasthee">Nikee Awasthee</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Arya, Jayadev S" sort="Arya, Jayadev S" uniqKey="Arya J" first="Jayadev S." last="Arya">Jayadev S. Arya</name><affiliation><nlm:aff id="af2-biomolecules-09-00159">CSIR-National Institute for Interdisciplinary Science and Technology, Chemical Science and Technology Division, Organic Chemistry Section, Trivandrum-695019, India;<email>aryaas2010@gmail.com</email> (J.S.A.);<email>kkmaiti29@gmail.com</email> (K.K.M.)</nlm:aff></affiliation></author><author><name sortKey="Maiti, Kaustabh K" sort="Maiti, Kaustabh K" uniqKey="Maiti K" first="Kaustabh K." last="Maiti">Kaustabh K. Maiti</name><affiliation><nlm:aff id="af2-biomolecules-09-00159">CSIR-National Institute for Interdisciplinary Science and Technology, Chemical Science and Technology Division, Organic Chemistry Section, Trivandrum-695019, India;<email>aryaas2010@gmail.com</email> (J.S.A.);<email>kkmaiti29@gmail.com</email> (K.K.M.)</nlm:aff></affiliation></author><author><name sortKey="Gupta, Subash C" sort="Gupta, Subash C" uniqKey="Gupta S" first="Subash C." last="Gupta">Subash C. Gupta</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">31018580</idno><idno type="pmc">6523773</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523773</idno><idno type="RBID">PMC:6523773</idno><idno type="doi">10.3390/biom9040159</idno><date when="2019">2019</date><idno type="wicri:Area/Pmc/Corpus">000427</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000427</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main"><italic>Curcuma raktakanda</italic> Induces Apoptosis and Suppresses Migration in Cancer Cells: Role of Reactive Oxygen Species</title><author><name sortKey="Mishra, Shruti" sort="Mishra, Shruti" uniqKey="Mishra S" first="Shruti" last="Mishra">Shruti Mishra</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Verma, Sumit Singh" sort="Verma, Sumit Singh" uniqKey="Verma S" first="Sumit Singh" last="Verma">Sumit Singh Verma</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Rai, Vipin" sort="Rai, Vipin" uniqKey="Rai V" first="Vipin" last="Rai">Vipin Rai</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Awasthee, Nikee" sort="Awasthee, Nikee" uniqKey="Awasthee N" first="Nikee" last="Awasthee">Nikee Awasthee</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author><author><name sortKey="Arya, Jayadev S" sort="Arya, Jayadev S" uniqKey="Arya J" first="Jayadev S." last="Arya">Jayadev S. Arya</name><affiliation><nlm:aff id="af2-biomolecules-09-00159">CSIR-National Institute for Interdisciplinary Science and Technology, Chemical Science and Technology Division, Organic Chemistry Section, Trivandrum-695019, India;<email>aryaas2010@gmail.com</email> (J.S.A.);<email>kkmaiti29@gmail.com</email> (K.K.M.)</nlm:aff></affiliation></author><author><name sortKey="Maiti, Kaustabh K" sort="Maiti, Kaustabh K" uniqKey="Maiti K" first="Kaustabh K." last="Maiti">Kaustabh K. Maiti</name><affiliation><nlm:aff id="af2-biomolecules-09-00159">CSIR-National Institute for Interdisciplinary Science and Technology, Chemical Science and Technology Division, Organic Chemistry Section, Trivandrum-695019, India;<email>aryaas2010@gmail.com</email> (J.S.A.);<email>kkmaiti29@gmail.com</email> (K.K.M.)</nlm:aff></affiliation></author><author><name sortKey="Gupta, Subash C" sort="Gupta, Subash C" uniqKey="Gupta S" first="Subash C." last="Gupta">Subash C. Gupta</name><affiliation><nlm:aff id="af1-biomolecules-09-00159">Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</nlm:aff></affiliation></author></analytic><series><title level="j">Biomolecules</title><idno type="eISSN">2218-273X</idno><imprint><date when="2019">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Although over 100 species of Curcuma are reported, only <italic>Curcuma longa</italic> is extensively studied. <italic>Curcuma raktakanda</italic>, a poorly studied species, is most commonly distributed in the Kerala state of India. For the first time, we examined the efficacy of different fractions (acetone, hexane, and ethyl acetate) of <italic>C. raktakanda</italic> against glioma, cervical, and breast cancer cell lines. As determined by mitochondrial reductase activity assay, the viability of cancer cells was decreased in a concentration-dependent manner by the three fractions. The half maximal inhibitory concentration (IC-50) values after the treatment of C-6 glioma cells for 48 h was found to be 32.97 µg/mL (acetone extract), 40.63 µg/mL (hexane extract), and 51.65 µg/mL (ethyl acetate extract). Of the three fractions, the acetone fraction was more effective. The long-term colony formation of cancer cells was significantly suppressed by the acetone fraction. Analyses using DAPI (4′,6-diamidino-2-phenylindole) staining, AO/PI (acridine orange/propidium iodide) staining, DNA laddering, and sub-G1 population revealed that the acetone extract induced apoptosis in glioma cells. The extract induced reactive oxygen species generation and suppressed the expression of cell survival proteins. The migration of cancer cells was also suppressed by the acetone extract. The gas chromatography-mass spectrometry (GC-MS) analysis indicated that tetracontane, dotriacontane, hexatriacontane, pentacosane, hexacosane, and eicosane are the major components in the acetone extract. Collectively, the extract from <italic>C. raktakanda</italic> exhibited anti-carcinogenic activities in cancer cells. We are exploring whether the phytoconstituents, individually, or collectively contribute to the anti-cancer activities of <italic>C. raktakanda</italic>.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Louis, D N" uniqKey="Louis D">D.N. Louis</name></author><author><name sortKey="Perry, A" uniqKey="Perry A">A. Perry</name></author><author><name sortKey="Reifenberger, G" uniqKey="Reifenberger G">G. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Biomolecules</journal-id><journal-id journal-id-type="iso-abbrev">Biomolecules</journal-id><journal-id journal-id-type="publisher-id">biomolecules</journal-id><journal-title-group><journal-title>Biomolecules</journal-title></journal-title-group><issn pub-type="epub">2218-273X</issn><publisher><publisher-name>MDPI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">31018580</article-id><article-id pub-id-type="pmc">6523773</article-id><article-id pub-id-type="doi">10.3390/biom9040159</article-id><article-id pub-id-type="publisher-id">biomolecules-09-00159</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title><italic>Curcuma raktakanda</italic> Induces Apoptosis and Suppresses Migration in Cancer Cells: Role of Reactive Oxygen Species</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Mishra</surname><given-names>Shruti</given-names></name><xref ref-type="aff" rid="af1-biomolecules-09-00159">1</xref></contrib><contrib contrib-type="author"><name><surname>Verma</surname><given-names>Sumit Singh</given-names></name><xref ref-type="aff" rid="af1-biomolecules-09-00159">1</xref></contrib><contrib contrib-type="author"><name><surname>Rai</surname><given-names>Vipin</given-names></name><xref ref-type="aff" rid="af1-biomolecules-09-00159">1</xref></contrib><contrib contrib-type="author"><name><surname>Awasthee</surname><given-names>Nikee</given-names></name><xref ref-type="aff" rid="af1-biomolecules-09-00159">1</xref></contrib><contrib contrib-type="author"><name><surname>Arya</surname><given-names>Jayadev S.</given-names></name><xref ref-type="aff" rid="af2-biomolecules-09-00159">2</xref></contrib><contrib contrib-type="author"><name><surname>Maiti</surname><given-names>Kaustabh K.</given-names></name><xref ref-type="aff" rid="af2-biomolecules-09-00159">2</xref></contrib><contrib contrib-type="author"><name><surname>Gupta</surname><given-names>Subash C.</given-names></name><xref ref-type="aff" rid="af1-biomolecules-09-00159">1</xref><xref rid="c1-biomolecules-09-00159" ref-type="corresp">*</xref></contrib></contrib-group><aff id="af1-biomolecules-09-00159"><label>1</label>Laboratory for Translational Cancer Research, Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221 005, India;<email>shruti25mishra87@gmail.com</email> (S.M.);<email>sumit.mhg.bhu14@gmail.com</email> (S.S.V.);<email>vipinrai28@gmail.com</email> (V.R.);<email>itsnikee@gmail.com</email> (N.A.)</aff><aff id="af2-biomolecules-09-00159"><label>2</label>CSIR-National Institute for Interdisciplinary Science and Technology, Chemical Science and Technology Division, Organic Chemistry Section, Trivandrum-695019, India;<email>aryaas2010@gmail.com</email> (J.S.A.);<email>kkmaiti29@gmail.com</email> (K.K.M.)</aff><author-notes><corresp id="c1-biomolecules-09-00159"><label>*</label>Correspondence: <email>sgupta@bhu.ac.in</email>; Tel.: +91-542-6701602</corresp></author-notes><pub-date pub-type="epub"><day>23</day><month>4</month><year>2019</year></pub-date><pub-date pub-type="collection"><month>4</month><year>2019</year></pub-date><volume>9</volume><issue>4</issue><elocation-id>159</elocation-id><history><date date-type="received"><day>20</day><month>3</month><year>2019</year></date><date date-type="accepted"><day>12</day><month>4</month><year>2019</year></date></history><permissions><copyright-statement>© 2019 by the authors.</copyright-statement><copyright-year>2019</copyright-year><license license-type="open-access"><license-p>Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>).</license-p></license></permissions><abstract><p>Although over 100 species of Curcuma are reported, only <italic>Curcuma longa</italic> is extensively studied. <italic>Curcuma raktakanda</italic>, a poorly studied species, is most commonly distributed in the Kerala state of India. For the first time, we examined the efficacy of different fractions (acetone, hexane, and ethyl acetate) of <italic>C. raktakanda</italic> against glioma, cervical, and breast cancer cell lines. As determined by mitochondrial reductase activity assay, the viability of cancer cells was decreased in a concentration-dependent manner by the three fractions. The half maximal inhibitory concentration (IC-50) values after the treatment of C-6 glioma cells for 48 h was found to be 32.97 µg/mL (acetone extract), 40.63 µg/mL (hexane extract), and 51.65 µg/mL (ethyl acetate extract). Of the three fractions, the acetone fraction was more effective. The long-term colony formation of cancer cells was significantly suppressed by the acetone fraction. Analyses using DAPI (4′,6-diamidino-2-phenylindole) staining, AO/PI (acridine orange/propidium iodide) staining, DNA laddering, and sub-G1 population revealed that the acetone extract induced apoptosis in glioma cells. The extract induced reactive oxygen species generation and suppressed the expression of cell survival proteins. The migration of cancer cells was also suppressed by the acetone extract. The gas chromatography-mass spectrometry (GC-MS) analysis indicated that tetracontane, dotriacontane, hexatriacontane, pentacosane, hexacosane, and eicosane are the major components in the acetone extract. Collectively, the extract from <italic>C. raktakanda</italic> exhibited anti-carcinogenic activities in cancer cells. We are exploring whether the phytoconstituents, individually, or collectively contribute to the anti-cancer activities of <italic>C. raktakanda</italic>.</p></abstract><kwd-group><kwd>cancer</kwd><kwd>curcuma</kwd><kwd>glioblastoma</kwd><kwd>inflammation</kwd><kwd>reactive oxygen species</kwd></kwd-group></article-meta></front><body><sec sec-type="intro" id="sec1-biomolecules-09-00159"><title>1. Introduction</title><p>Glioblastoma multiforme (GBM, glioblastoma or grade IV glioma) is the most aggressive, invasive, and most common tumor of the central nervous system [<xref rid="B1-biomolecules-09-00159" ref-type="bibr">1</xref>]. These tumors arise from astrocytes of the human brain and show high resistance to currently available therapy. Despite the significant advances in surgery, radiation therapy, and chemotherapy, the prognosis remains poor for glioblastoma with a median survival of 15.4 months after diagnosis [<xref rid="B2-biomolecules-09-00159" ref-type="bibr">2</xref>]. Because of the poor penetration of the blood brain barrier and development of drug resistance, the chemotherapy options for glioblastoma are limited [<xref rid="B3-biomolecules-09-00159" ref-type="bibr">3</xref>,<xref rid="B4-biomolecules-09-00159" ref-type="bibr">4</xref>]. Although some drugs such as temozolomide have been approved, glioblastoma remains highly incurable [<xref rid="B5-biomolecules-09-00159" ref-type="bibr">5</xref>]. The implication of these reports necessitates the development of novel therapy that can be used either as a single agent or as an adjuvant for glioblastoma therapy. </p><p>The natural products have been used for the treatment of several illnesses including cancer since ancient times. Globally, 80% of the human population are estimated to rely on plant-derived medicines for their health care needs [<xref rid="B6-biomolecules-09-00159" ref-type="bibr">6</xref>]. Further, 49% of the small molecules approved for cancer therapy between 1940 and 2014 had originated from nature [<xref rid="B6-biomolecules-09-00159" ref-type="bibr">6</xref>,<xref rid="B7-biomolecules-09-00159" ref-type="bibr">7</xref>]. Plant derived medicines have played a pivotal role in the healthcare of both ancient and modern society [<xref rid="B8-biomolecules-09-00159" ref-type="bibr">8</xref>,<xref rid="B9-biomolecules-09-00159" ref-type="bibr">9</xref>,<xref rid="B10-biomolecules-09-00159" ref-type="bibr">10</xref>,<xref rid="B11-biomolecules-09-00159" ref-type="bibr">11</xref>]. Paclitaxel (taxol), is one of the success stories for the use of agents derived from natural sources in cancer therapy. Originally isolated from the bark of the Pacific yew tree in 1971, this antimitotic agent has been reported to be effective against several cancer types including breast, ovarian, pancreatic, and non-small cell lung cancer [<xref rid="B12-biomolecules-09-00159" ref-type="bibr">12</xref>,<xref rid="B13-biomolecules-09-00159" ref-type="bibr">13</xref>,<xref rid="B14-biomolecules-09-00159" ref-type="bibr">14</xref>]. Because of multitargeting, low cost, safety, and ease of availability, interest in natural products for cancer therapy continues to grow. </p><p>The genus Curcuma (family Zingiberaceae) is one of the widely studied medicinal plants, the extract and constituents of which have demonstrated anti-cancer activities. Although as many as 133 species have been identified from this genus, only <italic>Curcuma longa</italic>, the golden spice turmeric, is being extensively studied. Curcumin, a minor but the most active component of turmeric, is reported to exhibit activities both in animal models and in humans [<xref rid="B15-biomolecules-09-00159" ref-type="bibr">15</xref>,<xref rid="B16-biomolecules-09-00159" ref-type="bibr">16</xref>,<xref rid="B17-biomolecules-09-00159" ref-type="bibr">17</xref>,<xref rid="B18-biomolecules-09-00159" ref-type="bibr">18</xref>]. Recent studies suggest that some species of curcuma are as active or even more active than <italic>C. longa</italic>. For example, the rhizomes of <italic>C. phaeocaulis</italic> is reported to exhibit better anti-inflammatory activity compared to <italic>C. longa</italic> [<xref rid="B19-biomolecules-09-00159" ref-type="bibr">19</xref>]. </p><p>However, studies on the anti-cancer activities of species other than <italic>C. longa</italic> are very few. <italic>Curcuma raktakanda</italic> is one such poorly studied species, which is widely distributed in the Kerala state of India [<xref rid="B20-biomolecules-09-00159" ref-type="bibr">20</xref>]. One study examined the effects of <italic>C. raktakanda</italic> extracts (leaves and tuber) on the early fourth instar larvae of four mosquito species (<italic>Aedes aegypti, Anopheles stephensi, Culex quinquefasciatus</italic>, and <italic>Culex sitiens</italic>). The petroleum ether extract (leaves and tuber) induced toxicity in all the tested mosquito species [<xref rid="B20-biomolecules-09-00159" ref-type="bibr">20</xref>]. However, the active constituent from the extract responsible for the larvicidal activities was not examined. Whether the extract and the constituents from <italic>C. raktakanda</italic> exhibit anti-cancer activity has not been reported previously. However, non-cancer drugs such as antibiotics, antiepileptics, anesthetics, and cardioprotectives have been successfully explored for anti-cancer activities [<xref rid="B21-biomolecules-09-00159" ref-type="bibr">21</xref>].</p><p>Because glioblastoma, like other cancer types, is a multigenic disease, the current paradigm for the therapy is either to combine multiple mono-targeted agents or to design a molecule that can target multiple pathways. Since, the extract is a mixture of several components, we sought to investigate the efficacy of <italic>C. raktakanda</italic> extract against glioblastoma. Additionally, we examined the efficacy of the extract against breast cancer and cervical cancer. The results to be discussed suggest that the <italic>C. raktakanda</italic> extract suppresses the viability of wide variety of cancer cells. Furthermore, the extract induces apoptosis and suppresses the migration of cancer cells.</p></sec><sec id="sec2-biomolecules-09-00159"><title>2. Material and Methods</title><sec id="sec2dot1-biomolecules-09-00159"><title>2.1. Plant Extract </title><p>The three extracts (hexane, ethyl acetate, and acetone) were obtained from the rhizome of <italic>C. raktakanda</italic>. The extraction was done in collaboration with Dr. Maiti from NIIST (CSIR) Trivandrum, India. <italic>Curcuma raktakanda</italic> rhizomes were collected from the Jawaharlal Nehru Tropical Botanical Garden and Research Institute (JNTBGRI) and the Medicinal Plant Garden Thiruvananthapuram in February 2014. In brief, the rhizomes were thoroughly cleaned, dried at 40 °C for three days, powdered, and approximately 500 g was weighed out for further processing. The extraction was carried out from the powdered material in a successive manner using hexane (1.5 L), ethyl acetate (1.5 L), and acetone (1.5 L). The extraction was performed three times with each solvent at room temperature. Finally, Buchi rotary evaporator (Mumbai, Maharashtra, India)was used to concentrate the extract under reduced pressure. The total yield was found to be around 30g (hexane extract), 25g (ethyl acetate extract), and 25g (acetone extract). </p></sec><sec id="sec2dot2-biomolecules-09-00159"><title>2.2. Reagents </title><p>Dulbecco’s modified eagle medium (DMEM), Roswell Park Memorial Institute 1640 (RPMI-1640), penicillin, streptomycin, and trypsin-EDTA (ethylenediaminetetraacetic acid) were procured from Himedia (Mumbai, Maharashtra, India). Crystal violet, dimethyl sulfoxide (DMSO), and 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) were obtained from SRL Diagnostics (Mumbai, Maharashtra, India). The 2′,7′-dichlorodihydrofluorescein diacetate (H2DCFDA), 4′,6-diamidino-2-phenylindole (DAPI), 5,5′,6,6′-Tetrachloro-1,1′,3,3′-tetraethyl benzimidazolyl carbocyanineiodide (JC-1), acridine orange, agarose, alexa fluor 488, ethidium bromide, fetal bovine serum (FBS), and propidium iodide were obtained from Invitrogen (Carlsbad, CA, USA). Bcl-xL antibody was obtained from Santa Cruz Biotechnology (Santa Cruz, CA, USA) while GAPDH (glyceraldehyde-3-phosphate dehydrogenase) was obtained from Abgenex (Bhubaneswar, Odisha, India). </p></sec><sec id="sec2dot3-biomolecules-09-00159"><title>2.3. Cell Lines </title><p>The human breast (MDA-MB-231, MCF-7), cervical (HeLa), and rat glioma (C-6) cell lines were obtained from the National Centre for Cell Science (NCCS), Pune, India. MDA-MB-231, MCF-7, and HeLa cells were cultured in high glucose DMEM, while RPMI-1640 was used for C-6 cells. The FBS (10%), penicillin (100 units/mL), and streptomycin (100 µg/mL) were used to supplement the media. </p></sec><sec id="sec2dot4-biomolecules-09-00159"><title>2.4. Assay for Cell Viability </title><p>The mitochondrial reductase activity was measured to determine the effect of extracts on the viability of cancer cells using MTT as a substrate [<xref rid="B22-biomolecules-09-00159" ref-type="bibr">22</xref>]. The cytotoxic potential of chemotherapeutic agents was also examined using the same assay. The cells were seeded in different wells of 96 well plate (10,000/well) and treated with different concentrations of extract for 48 h. The formation of purple formazan was measured for examining the cell viability.</p></sec><sec id="sec2dot5-biomolecules-09-00159"><title>2.5. Assay for Colony Formation </title><p>The ability of a single cell to grow into a colony was examined by clonogenic assay, which is an in vitro cell survival assay. We used a method described previously with minor modifications [<xref rid="B23-biomolecules-09-00159" ref-type="bibr">23</xref>]. For this, approximately 1000 cells were seeded per well and treated with different concentrations of the acetone extract for 6 h. The cells were washed, and the colony formation was measured after 6–7 days. Finally, the colonies were stained with 0.1% crystal violet and counted manually.</p></sec><sec id="sec2dot6-biomolecules-09-00159"><title>2.6. Assay for DNA Laddering </title><p>DNA laddering is a distinctive feature during the late stages of apoptosis. The assay was performed using a method described earlier [<xref rid="B24-biomolecules-09-00159" ref-type="bibr">24</xref>]. The cells were treated with acetone extract (25–50 µg/mL) for 24 h followed by washing and lysis in a buffer containing 5 mM EDTA, 5M NaCl, 100 mM Tris-HCl (pH 8.5), and 10% sodium dodecyl sulfate (SDS). The deproteinization was then carried out with proteinase K (20 mg/mL) at 55 °C for 2 h. The deproteinized lysate was mixed with an equal volume of chloroform and centrifuged at 12,000 rpm for 15 min at 4 °C. Subsequently, an equal volume of isopropanol was added, and the DNA was pelleted at 12,000 rpm for 20 min. The DNA was then washed with 70% ethanol, air dried, dissolved in tris-EDTA buffer, and electrophoresed on 1.2% agarose gel containing ethidium bromide. Finally, the electrophoresed DNA was visualized and photographed in a gel documentation system (BioRad Gel Doc XR<sup>+</sup>, Hercules, CA, USA).</p></sec><sec id="sec2dot7-biomolecules-09-00159"><title>2.7. Assay for Nuclear Morphology </title><p>To examine the effects of the extracts on the nuclear morphology, DAPI staining was performed [<xref rid="B22-biomolecules-09-00159" ref-type="bibr">22</xref>]. C-6 glioma cells were treated with the acetone extract (1–50 µg/mL) for 24 h. The cells were then washed with PBS, fixed with paraformaldehyde (4%), permeabilized with methanol, and stained with DAPI. The morphology of the nucleus was examined under the fluorescence microscope and the images were captured. </p></sec><sec id="sec2dot8-biomolecules-09-00159"><title>2.8. Assay for Cell Viability by Staining with Acridine Orange/Propidium Iodide </title><p>In order to examine cell viability accurately, we performed AO/PI staining. C-6 cells were treated with the acetone extract (1–50 µg/mL). After 24 h, the cells were washed with PBS, stained with AO/PI, and visualized under the fluorescence microscope.</p></sec><sec id="sec2dot9-biomolecules-09-00159"><title>2.9. Assay for Sub-G1 Population </title><p>We stained the cells with propidium iodide (PI) to examine the effects of the acetone extract on the sub-G1 population by flow cytometry [<xref rid="B25-biomolecules-09-00159" ref-type="bibr">25</xref>]. The C-6 glioma cells were treated with acetone extract for 24 h. After washing with PBS, the cells were fixed with 70% chilled methanol, treated with RNaseA, and stained with PI. The FACScan was used to determine the sub-G1 population and the analysis was performed by Cell Quest software (Becton Dickinson, San Jose, CA, USA).</p></sec><sec id="sec2dot10-biomolecules-09-00159"><title>2.10. Assay for Mitochondrial Membrane Potential (ΔΨ)</title><p>To examine the effects of acetone extract on the mitochondrial membrane potential, we used a fluorochrome JC-1 as reported earlier [<xref rid="B26-biomolecules-09-00159" ref-type="bibr">26</xref>]. Briefly, the control and treated cells were stained with JC-1 (10 μg/mL), washed, and imaged first under red filter and then under green filter. While the green fluorescence indicated the cells with depolarized mitochondria, red fluorescence indicated cells with intact mitochondria.</p></sec><sec id="sec2dot11-biomolecules-09-00159"><title>2.11. Assay for Protein Expression </title><p>Whether the acetone extract affects the expression of cell survival proteins was examined by western blot analysis [<xref rid="B27-biomolecules-09-00159" ref-type="bibr">27</xref>]. The whole cell lysate, from normal and treated cells, were electrophoresed on SDS-PAGE (sodium dodecyl sulfate–polyacrylamide gel electrophoresis) and transferred onto polyvinylidene difluoride (PVDF) membrane. The membrane containing the transferred proteins were first probed with the primary antibody, then with the horseradish peroxidase (HRP) conjugated secondary antibody, and finally detected using enhanced chemiluminescence (ECL) reagent. </p></sec><sec id="sec2dot12-biomolecules-09-00159"><title>2.12. Assay for Cell Migration </title><p>To examine the effects of the acetone extract on cell migration, we used a wound healing assay. In brief, C-6 glioma cells were seeded into a culture dish and allowed to grow to 70% confluency. A wound was introduced into the monolayers using a sterile tip and washed to remove the cell debris. The cells were then allowed to grow in the culture media with or without the acetone extract. After 0, 12, and 24 h of treatment with acetone extract, the wound area was examined under the phase contrast microscope.</p></sec><sec id="sec2dot13-biomolecules-09-00159"><title>2.13. Assay for Reactive Oxygen Species Generation</title><p>Whether the acetone extract has the potential to generate reactive oxygen species (ROS) in the C-6 glioma cells was examined by flow cytometry [<xref rid="B28-biomolecules-09-00159" ref-type="bibr">28</xref>]. Cells were treated with acetone extract (1–30 µg/mL) for 1 h. After the termination of the treatment time, cells were washed and stained with 10 µM 2′,7′-dichlorofluorescin diacetate (H<sub>2</sub>DCFDA) for 15 min in the dark. The stained cells were examined under fluorescence microscope and also by flow cytometry using FACScan. The analysis of flow cytometry data was carried out using Cell Quest software (Becton Dickinson, San Jose, CA, USA).</p></sec><sec id="sec2dot14-biomolecules-09-00159"><title>2.14. Gas Chromatography-Mass Spectrometry</title><p>Shimadzu Make GC-MS-TQ-8030 instrument (Tokyo, Japan) was used for the gas chromatography-mass spectrometry (GC-MS) analyses of different fractions of <italic>Curcuma raktaknda</italic> (hexane extract, ethyl acetate extract, and acetone extract). The compounds were separated using nonpolar Rxi 5 Sil MS capillary column in full scan mode with injector mode-splitless and quadra pole mass selective detector (MSD). The injection temperature was set at 250 °C while GC-MS interface temperature at 250 °C. An aliquot of 1 μL volume was injected into the column. Helium was used as a carrier gas (pressure: 57.5 KPa, flow rate: 1 mL/min). Mass spectra were detected at 70 eV. The temperature programming was set as follows: column temperature was started from 60 °C (held for 2 min) and linearly increased by 5 °C/min to 200 °C (held for 2 min); after that it was increased by 3 °C/min to 220 °C (held for 1 min); further it was increased by 6 °C/min to 250 °C (held for 7 min). Total GC running time was 51.67 min. The compounds were identified by comparing mass spectra of each peak with NIST5 and WILEY libraries.</p></sec></sec><sec sec-type="results" id="sec3-biomolecules-09-00159"><title>3. Results</title><p>The overall goal of this study was to examine the anti-cancer potential of the extract from <italic>C. raktakanda</italic> that has demonstrated larvicidal activities. Most of the experiments were performed using C-6 glioma cell lines. We also used breast (MDA-MB-231, MCF-7) and cervical (HeLa) cancer cell lines to determine the specificity of the extract. The underlying mechanism and the potential components from the extract were also examined. </p><sec id="sec3dot1-biomolecules-09-00159"><title>3.1. Curcuma raktakanda Suppresses Viability and Reduces Long-Term Colony Formation of Glioma Cells </title><p>We used three different extracts (acetone, hexane, and ethylacetate) from the rhizomes of <italic>C. raktakanda</italic>. The cytotoxic potential of the extract was examined by measuring mitochondrial reductase activity using MTT as the substrate. We observed that the viability of C-6 glioma cells was suppressed by the three extracts in a concentration dependent manner (<xref ref-type="fig" rid="biomolecules-09-00159-f001">Figure 1</xref>A). However, the acetone extract was more effective when compared to the hexane and ethyl acetate extracts. For example, at a concentration of 25 µg/mL, 39% suppression in the viability was observed by the acetone extract. However, 7% suppression in the viability was observed by both hexane and ethyl acetate extracts. Furthermore, the half maximal inhibition (IC-50) values after treatment of C-6 cells for 48 h was found to be 32.97 µg/mL (acetone extract), 40.63 µg/mL (hexane extract), and 51.65 µg/mL (ethyl acetate extract). Therefore, we used the acetone extract (AE) for most experiments. Under similar experimental conditions, cisplatin and imatinib (positive controls) suppressed the viability of C-6 cells in a dose dependent manner (<xref ref-type="fig" rid="biomolecules-09-00159-f001">Figure 1</xref>B). </p><p>Next, we examined the colony forming ability of C-6 glioma cells without and with AE treatment. Cells were exposed to 4, 8, 16, 32, and 64 µg/mL AE for 6 h. Cells were then washed and allowed to form colonies for 7 days. The extract significantly suppressed the number of colonies at a concentration as low as 16 µg/mL (<xref ref-type="fig" rid="biomolecules-09-00159-f001">Figure 1</xref>C). At 64 µg/mL, almost no colonies were observed. </p></sec><sec id="sec3dot2-biomolecules-09-00159"><title>3.2. Acetone Extract induces Apoptosis in Glioma Cells</title><p>Apoptosis, a process of programmed cell death, is a normal physiological process. However, cancer cells have developed mechanisms to evade apoptosis. The induction of apoptosis selectively in cancer cells is one of the potential strategies of cancer therapy. Numerous assays were performed to examine the apoptosis inducing potential of AE. First, we examined the changes in the morphology of the cells by AO/PI dual staining. While AO can enter both live and dead cells, PI enters only dead cells with compromised mitochondria. Acridine orange stains all nucleated cells to generate green fluorescence. Propidium iodide stains dead nucleated cells to generate red fluorescence. Thus, the live nucleated cells produce green fluorescence, while dead nucleated cells produce red fluorescence. An increase in the concentration of AE was associated with a significant decrease in the number of viable cells. At a concentration as low as 10 µg/mL, features of early apoptosis such as membrane blebbing and nuclear condensation were observed after 24 h of treatment (<xref ref-type="fig" rid="biomolecules-09-00159-f002">Figure 2</xref>A). To confirm the observations obtained by AO/PI staining, we stained the control and treated cells with DAPI. A normal, oval, and round shaped nuclei was observed in control cells (<xref ref-type="fig" rid="biomolecules-09-00159-f002">Figure 2</xref>B). However, AE treated cells exhibited nuclear fragmentation and chromatin condensation (<xref ref-type="fig" rid="biomolecules-09-00159-f002">Figure 2</xref>B). One hallmark of late apoptosis is the cleavage of genomic DNA into oligonucleosomal fragments. Degraded DNA can be visualized by agarose gel electrophoresis. While the DNA from control cells was intact, DNA smear was observed from AE treated cells (<xref ref-type="fig" rid="biomolecules-09-00159-f002">Figure 2</xref>C). Cancer cells, including glioma, have evolved mechanism to survive. The suppression of Bcl-xL expression is one potential strategy to induce apoptosis in cancer cells. Whether AE can modulate Bcl-xL expression in C-6 glioma cells was examined by western blot analysis. While Bcl-xL was abundant in control cells, AE induced a concentration dependent decrease in the expression of Bcl-xL after 24 h of treatment (<xref ref-type="fig" rid="biomolecules-09-00159-f002">Figure 2</xref>D). Overall, these results suggest the apoptosis inducing potential of AE in C-6 glioma cells. </p></sec><sec id="sec3dot3-biomolecules-09-00159"><title>3.3. Acetone Extract Induces Cell Cycle Arrest and Lowers Mitochondrial Membrane Potential in Glioma Cells </title><p>Next, we examined the sub-G1 population in the cells treated with or without AE. The treatment of C-6 cells with AE was associated with a modest increase in sub-G1 population (<xref ref-type="fig" rid="biomolecules-09-00159-f003">Figure 3</xref>A). One hallmark of early apoptosis is an irreversible reduction in mitochondrial membrane potential (MMP). At high MMP, JC-1 dye aggregates and produces red to orange colored fluorescence. JC-1 dye exists in monomeric form and produces green fluorescence at low MMP. In control glioma cells, red fluorescence was observed (<xref ref-type="fig" rid="biomolecules-09-00159-f003">Figure 3</xref>B, upper). In treated cells, an increase in green fluorescence was observed by increasing the concentration of AE (<xref ref-type="fig" rid="biomolecules-09-00159-f003">Figure 3</xref>B, lower). However, the red stained cells were decreased with an increase of AE concentration (<xref ref-type="fig" rid="biomolecules-09-00159-f003">Figure 3</xref>B, lower). Similarly, a concentration dependent decrease in the ratio of red/green intensity was observed with an increase of AE concentration. These observations suggest that the mitochondria are involved in the induction of apoptosis by AE in C-6 glioma cells.</p></sec><sec id="sec3dot4-biomolecules-09-00159"><title>3.4. Acetone Extract Suppresses the Migration of Glioma Cells </title><p>The glioma is characterized by local invasion. Before invasion, cells are detached from the primary tumor and migrate to the surrounding normal brain tissue. C-6 cells were exposed to different concentrations of AE (1, 10 µg/mL) and the migration of the cells was examined in the normal and treated cells after 12 h and 24 h (<xref ref-type="fig" rid="biomolecules-09-00159-f004">Figure 4</xref>). In control cells, the wound area was occupied by migrated cells with an increase of time. However, less cells were migrated to the wound area in the group treated with AE extract. Similarly, there was a significant increase in the healed area over time in the control cells. The increase in the healed area in the treated cells was less as compared to that observed in the control cells. These results suggest that the AE suppresses the migration of glioma cells. However, the migration of C-6 glioma cells were minimally affected by 1 µg/mL AE. </p></sec><sec id="sec3dot5-biomolecules-09-00159"><title>3.5. Acetone Extract Induces Reactive Oxygen Species Generation in Glioma Cells</title><p>Cancer cells have the inherent property of increased ROS generation that can be exploited to induce ROS selectively. Next, we examined the potential of AE on ROS generation in C-6 glioma cells. The cells were exposed to different concentrations of AE for 1 h and stained with H2DCFDA. The ROS generation was measured by flow cytometry and also by fluorescence microscopy. The ROS generation in control and in 5 µg/mL AE treated cells was minimal (<xref ref-type="fig" rid="biomolecules-09-00159-f005">Figure 5</xref>). However, an increase in ROS generation was observed with an increase in AE concentration. For example, a respective 1.6-fold and 1.7-fold increase in ROS generation was observed at 10 µg/mL and 20 µg/mL AE, respectively. </p></sec><sec id="sec3dot6-biomolecules-09-00159"><title>3.6. Curcuma raktakanda Reduces the Viability of Breast and Cervical Cancer Cells</title><p>Next, we examined the cytotoxic activities of <italic>C. raktakanda</italic> in cancer cells other than glioma. For this, we used breast (MDA-MB-231, MCF-7) and cervical (HeLa) cancer cell lines. Cells were exposed to different extracts of <italic>C. raktakanda</italic> and proliferation was examined by MTT assay. The three extracts suppressed the proliferation of cancer cells in a concentration dependent manner (<xref ref-type="fig" rid="biomolecules-09-00159-f006">Figure 6</xref>). However, the cancer cells exhibited varied degrees of sensitivity to the extracts. For example, at lower concentrations (0.1–50 µg/mL), acetone extract was more effective compared to hexane and ethyl acetate extracts in MCF-7 cells. However, at the highest tested concentration (100 µg/mL) of the hexane extract was more effective. In MDA-MB-231 cells, the ethyl acetate extract was relatively more effective compared to the acetone and hexane extracts. In HeLa cells, acetone extract was more effective compared to the other two extracts. Overall, these results suggest that the cancer cells differ in their sensitivity to the <italic>C. raktakanda</italic>.</p></sec><sec id="sec3dot7-biomolecules-09-00159"><title>3.7. Gas Chromatography-Mass Spectrometry Analysis of Curcuma raktakanda Rhizome Fractions</title><p>A previous study demonstrated the larvicidal activity of <italic>C. raktakanda</italic> [<xref rid="B20-biomolecules-09-00159" ref-type="bibr">20</xref>]. However, the phytoconstituents of this plant have not been analyzed. Finally, we analyzed the phytoconstituents of three extracts by GC-MS. The identification and interpretation of GC-MS data was accomplished using the data from National Institute Standard and Technology (Gaithersburg, MD, USA). A respective 26, 21, and 30 peaks were obtained from acetone, hexane, and the ethyl acetate fraction, respectively (<xref rid="biomolecules-09-00159-t001" ref-type="table">Table 1</xref>, <xref rid="biomolecules-09-00159-t002" ref-type="table">Table 2</xref> and <xref rid="biomolecules-09-00159-t003" ref-type="table">Table 3</xref>). The major compounds in hexane fractions were: beta-Elemenone (16.84%), Cycloprop[e]indene-1a,2(1H)-dicarboxaldehyde,3a,4,5,6,6a,6b-hexahydro-5,5,6b-trimethyl (1a.alpha.,3a.beta.,6a.beta.,6b.alpha) (10.49%), Alloaromadendreneoxide-(1) (8.47%), and 5,8-dihydroxy-4a-methyl-4,4a,4b,5,6,7,8,8a,9,10-decahydro-2(3<italic>H</italic>)-phenanthrenone (8.33%). The ethyl acetate fraction contained mainly 2-phosphabicyclo[3.1.0]hex-3-ene, 6,6-dimethyl-2,3,4-triphenyl-, (endo)- (16%), desmethylnomifensine (12.6%), 1,1,6-trimethyl-3-methylene-2-(3,6,9,13-tetramethyl-6-ethenye-10,14-dimethylene-pentadec-4-enyl) cyclohexane (9.48%), and cobalt, hexamethylbenzene-pentamethylcyclopentadienyl (8.67%). The major components in the acetone fraction were reported to be tetracontane (38.53%), (-)-(1<italic>R</italic>,2<italic>R</italic>,4a<italic>S</italic>,8a<italic>S</italic>)-1-(2-hydroxyethyl)-2,5,5,8a-tetramethyldecahydro-2-naphthalenol (9.10%) and dotriacontane (6.16%). </p></sec></sec><sec sec-type="discussion" id="sec4-biomolecules-09-00159"><title>4. Discussion</title><p>Although much has been published on the golden spice, turmeric (<italic>C. longa</italic>), very little is known about other Curcuma species. Curcumin, which constitutes 2–5% of turmeric, is one of the most active components [<xref rid="B18-biomolecules-09-00159" ref-type="bibr">18</xref>]. Both curcumin and turmeric are known to modulate a number of cancer related targets by preclinical and clinical studies [<xref rid="B16-biomolecules-09-00159" ref-type="bibr">16</xref>,<xref rid="B29-biomolecules-09-00159" ref-type="bibr">29</xref>]. The genus Curcuma constitutes more than 130 species. Whether <italic>C. raktakanda</italic> exhibit anti-cancer activities is unknown. Therefore, the focus of the current study was to examine the biological activities of <italic>C. raktakanda</italic> against glioblastoma cells.</p><p>We observed that the three extracts of <italic>C. raktakanda</italic> exhibited activities against C-6 glioblastoma cell lines. However, the acetone extract was more effective compared to the other two. Further, the acetone extract induced apoptosis and suppressed proliferation of C-6 glioma cells. For the first time, we found that the acetone extract inhibited the expression of cell survival protein Bcl-xL. Glioblastoma cells are known to express high levels of Bcl-xL [<xref rid="B30-biomolecules-09-00159" ref-type="bibr">30</xref>]. The Bcl-xL promotes tumorigenesis partly through the nuclear factor-kappa B/chemokine (C-X-C motif) ligand 8 (NF-κB/CXCL8) mediated angiogenesis [<xref rid="B31-biomolecules-09-00159" ref-type="bibr">31</xref>,<xref rid="B32-biomolecules-09-00159" ref-type="bibr">32</xref>]. Additionally, the survival of several cancer types primarily depends on the Bcl-xL expression [<xref rid="B33-biomolecules-09-00159" ref-type="bibr">33</xref>,<xref rid="B34-biomolecules-09-00159" ref-type="bibr">34</xref>]. The observed inhibitory effects of the extract on tumor cell survival could be due to the suppression of the Bcl-xL expression. The suppression of Bcl-xL expression by the acetone extract may be due to its inhibitory effects on NF-κB activation. The presence of membrane blebbing, nuclear condensation, and accumulation of cells at the sub-G1 phase after treatment with <italic>Curcuma raktakanda</italic> (CR) extract further supports its negative effects on the survival of C-6 glioblastoma cells.</p><p>The main cause of glioblastoma mortality is not the primary tumor but because the tumor invades locally. This leads to the ineffectiveness of current treatment options and recurrence of the tumor. The invasion involves detaching the cells from the primary tumor followed by migration in the surrounding normal brain tissue. In our observations, CR extract was found to suppress the migration of C-6 glioma cells. The process of migration and invasion involved the synthesis of proteases such as metalloproteinases that degrade extracellular-matrix (ECM) components selectively [<xref rid="B35-biomolecules-09-00159" ref-type="bibr">35</xref>]. Whether CR extract modulates these proteases remains to be elucidated. </p><p>The extract used in the current study is a mixture of several components. The GC-MS analyses indicated that the three extracts are different in terms of phytochemical constituents. The major component of acetone fraction such as tetracontane, dotriacontane, and hexatriacontane has not been reported to exhibit anti-cancer activities previously. However, minor components of the acetone fraction such as pentacosane and eicosane are reported to exhibit anti-cancer activities. In a previous study, the essential oil from the leaves of <italic>Malus domestica</italic> containing pentacosane exhibited activities against C-6, A549 (lung carcinoma), CHOK1 (ovarian), and THP-1 (acute monocytic leukemia) cells [<xref rid="B36-biomolecules-09-00159" ref-type="bibr">36</xref>]. Similarly, eicosane (macrolide) produces cytotoxicity both in vitro and in nude mice bearing human ovarian carcinoma cells [<xref rid="B37-biomolecules-09-00159" ref-type="bibr">37</xref>]. Eucalyptol and elemene, identified in the hexane and ethylacetate extracts, are also known to exhibit anti-cancer activities [<xref rid="B38-biomolecules-09-00159" ref-type="bibr">38</xref>,<xref rid="B39-biomolecules-09-00159" ref-type="bibr">39</xref>,<xref rid="B40-biomolecules-09-00159" ref-type="bibr">40</xref>,<xref rid="B41-biomolecules-09-00159" ref-type="bibr">41</xref>]. Whether the components of the extract interact in an additive, synergistic, or antagonistic manner remains to be explored.</p><p>We also observed that the CR extract inhibits the viability of not only glioblastoma cells but also breast cancer cells and cervical cancer cells. These observations suggest the broad-spectrum effects of the extract. We observed that AE induces ROS generation in C-6 glioblastoma cells. The role of ROS in the regulation of cancer associated cell signaling pathways is well established [<xref rid="B42-biomolecules-09-00159" ref-type="bibr">42</xref>]. Further, chemotherapeutic agents and nutraceuticals mediate their effects through the production of ROS [<xref rid="B43-biomolecules-09-00159" ref-type="bibr">43</xref>,<xref rid="B44-biomolecules-09-00159" ref-type="bibr">44</xref>]. Implication of all these suggest that ROS act as a double-edged sword during cancer pathogenesis [<xref rid="B45-biomolecules-09-00159" ref-type="bibr">45</xref>]. Whether ROS is required for the anti-cancer activities of the acetone extract remains to be elucidated. The ability of CR extract to disrupt mitochondrial membrane potential suggest that the apoptosis is mediated through the mitochondria.</p><p>A previous study demonstrated that the CR extract exhibit larvicidal activities [<xref rid="B20-biomolecules-09-00159" ref-type="bibr">20</xref>]. Thus, our observations provide a possibility that the non-cancer agents such as larvicides could be repurposed for anti-cancer activities. The application of larvicides in cancer therapy may appear unconventional. However, drug repurposing is an emerging novel approach to significantly reduce the time involved in drug development process [<xref rid="B46-biomolecules-09-00159" ref-type="bibr">46</xref>]. Similar to our observation, deltamethrin, deguelin, destruxin, and rotenone type of insecticides have also demonstrated potential against cancer cells [<xref rid="B47-biomolecules-09-00159" ref-type="bibr">47</xref>]. Similarly, rapamycin which was originally developed as a macrolide antibiotic exhibits anti-cancer activities [<xref rid="B48-biomolecules-09-00159" ref-type="bibr">48</xref>]. Minocycline is another antibiotic being tested for its activities against ovarian cancer, glioma, and numerous other cancer types [<xref rid="B49-biomolecules-09-00159" ref-type="bibr">49</xref>]. </p><p>The development of drug resistance is a major hurdle in the therapy of several cancer types including glioblastoma [<xref rid="B50-biomolecules-09-00159" ref-type="bibr">50</xref>]. Our unpublished observations suggest that the acetone extract can sensitize C-6 cells to doxorubicin at higher concentrations. These observations provide an opportunity that the AE can be used in combination with existing drugs to overcome chemoresistance. Cancer related genes such as NF-κB and cell survival proteins are involved in the development of drug resistance [<xref rid="B51-biomolecules-09-00159" ref-type="bibr">51</xref>]. A possibility that the suppression in Bcl-xL expression by AE sensitizes cancer cells to doxorubicin cannot be ruled out. Whether AE modulate NF-κB activation remains to be elucidated. </p><p>In conclusion, our observations suggest that the rhizome extract from <italic>C. raktakanda</italic> exhibit anti-carcinogenic activities. The components from the extract responsible for all these activities remains to be elucidated. The generation of ROS by the extract may contribute to its anti-cancer activities. Our observations are important as very little is known about this plant. One limitation of the current study is that the actual component of the extract responsible for the observed anticancer effects is not known. However, with several components, the mixture can target multiple glioblastoma associated pathways. This may offer an advantage as the glioblastoma is caused by dysregulation of multiple genes and thus multi-targeting approach is required. We are currently working on the constituents and the underlying mechanism by which this plant exhibits broad-spectrum anti-cancer activities.</p></sec></body><back><ack><title>Acknowledgments</title><p>The work was financially supported by the grants from Science and Engineering Research Board (ECR/2016/000034), and University Grants Commission [No.F. 30-112/2015 (BSR)]. The financial assistance from ICMR New Delhi to SM (3/1/3/JRF-2016/LS/HRD-65-80388), DBT New Delhi to SSV (DBT/2017/BHU/786), and BHU Varanasi to NA (R/Dev/IX-Sch-BHU Res Sch 2018-19), is thankfully acknowledged. The fluorescence microscopy and flow cytometry facilities were provided by BHU’s Interdisciplinary School of Life Sciences.</p></ack><notes><title>Author Contributions</title><p>Conceptualization: K.K.M. and S.C.G.; methodology: S.M., S.S.V., V.R., N.A. and J.S.A.; validation: S.M. and J.S.A.; formal analysis: S.M., S.S.V., J.S.A., K.K.M. and S.C.G.; data curation: S.M. and J.S.A.; writing—original draft preparation: S.M. and S.C.G.; writing—review and editing: S.M. and S.C.G.; supervision: K.K.M. and S.C.G.; project administration: S.C.G., funding acquisition: S.M. and S.C.G.</p></notes><notes notes-type="COI-statement"><title>Conflicts of Interest</title><p>The authors declare no conflict of interest.</p></notes><ref-list><title>References</title><ref id="B1-biomolecules-09-00159"><label>1.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Louis</surname><given-names>D.N.</given-names></name><name><surname>Perry</surname><given-names>A.</given-names></name><name><surname>Reifenberger</surname><given-names>G.</given-names></name><name><surname>Von Deimling</surname><given-names>A.</given-names></name><name><surname>Figarella-Branger</surname><given-names>D.</given-names></name><name><surname>Cavenee</surname><given-names>W.K.</given-names></name><name><surname>Ohgaki</surname><given-names>H.</given-names></name><name><surname>Wiestler</surname><given-names>O.D.</given-names></name><name><surname>Kleihues</surname><given-names>P.</given-names></name><name><surname>Ellison</surname><given-names>D.W.</given-names></name></person-group><article-title>The 2016 World Health Organization classification of tumors of the central nervous system: A summary</article-title><source>Acta Neuropathol.</source><year>2016</year><volume>131</volume><fpage>803</fpage><lpage>820</lpage><pub-id pub-id-type="doi">10.1007/s00401-016-1545-1</pub-id><pub-id pub-id-type="pmid">27157931</pub-id></element-citation></ref><ref id="B2-biomolecules-09-00159"><label>2.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Shirai</surname><given-names>K.</given-names></name><name><surname>Chakravarti</surname><given-names>A.</given-names></name></person-group><article-title>Towards personalized therapy for patients with glioblastoma</article-title><source>Expert Rev. 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Chem.</source><year>2017</year><volume>292</volume><fpage>3379</fpage><lpage>3388</lpage><pub-id pub-id-type="doi">10.1074/jbc.M116.756536</pub-id><pub-id pub-id-type="pmid">28082672</pub-id></element-citation></ref></ref-list></back><floats-group><fig id="biomolecules-09-00159-f001" orientation="portrait" position="float"><label>Figure 1</label><caption><p>The rhizome extract of <italic>C. raktakanda</italic> suppresses viability and long-term colony formation of glioma cells. (<bold>A</bold>) C-6 glioma cells were exposed to different concentrations (µg/mL) of CR extracts (acetone, hexane, and ethyl acetate) for 48 h. The proliferation of cells was examined by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay. Note that the acetone extract was more potent as compared to hexane and ethyl acetate. (<bold>B</bold>) Cisplatin and imatinib were used as positive controls. (<bold>C</bold>) C-6 cells (1000 cells/well) were treated with indicated concentrations (µg/mL) of the acetone extract for 6 h. After seven days, the colonies were stained with 0.1% crystal violet and counted manually. A concentration dependent reduction in the number of colonies was observed after treatment with acetone extract. Where indicated, the values are mean ± SE from three experiments. *- indicates the significance of difference compared to the control group; <italic>P</italic> < 0.05. AE, acetone extract; CR, <italic>Curcuma raktakanda</italic>.</p></caption><graphic xlink:href="biomolecules-09-00159-g001"></graphic></fig><fig id="biomolecules-09-00159-f002" orientation="portrait" position="float"><label>Figure 2</label><caption><p>Acetone extract induces apoptosis in glioma cells. (<bold>A</bold>) C-6 glioma cells were exposed to different concentrations (µg/mL) of acetone extract. After 24 h, cells were stained with acridine orange (AO)/propidium iodide (PI) (10 µg/mL) and observed under fluorescence microscope. As indicated by arrows, control cells exhibited round to oval shaped green nucleus. In treated cells, orange to red fluorescence was observed with condensed and fragmented nucleus. (<bold>B</bold>) C-6 cells were treated with indicated concentration (µg/mL) of acetone extract. After 24 h, cells were fixed, permeabilized and mounted with DAPI. While fragmentation was observed in the treated cells, round and oval shaped nuclei were observed in the control cells as shown by arrows. (<bold>C</bold>) C-6 cells were exposed to acetone extract for 24 h, DNA was isolated and electrophoresed on agarose gel. Note the presence of DNA smear in the treated cells at higher concentration. (<bold>D</bold>) C-6 cells were exposed to indicated concentrations (µg/mL) of acetone extract for 24 h and the expression of Bcl-xL was examined in the whole cell extract by western blotting. Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) was used as an internal control. Values below the blot indicate fold change in the Bcl-xL expression compared to control. The scale bar represents 100 µm. AE, acetone extract.</p></caption><graphic xlink:href="biomolecules-09-00159-g002"></graphic></fig><fig id="biomolecules-09-00159-f003" orientation="portrait" position="float"><label>Figure 3</label><caption><p>Acetone extract induces cell cycle arrest and lowers mitochondrial membrane potential in glioma cells. (<bold>A</bold>) C-6 glioma cells were exposed to indicated concentrations (µg/mL) of acetone extract for 24 h. Cells were then fixed and washed with PBS before staining with PI. The population at different phases of cell cycle were examined by flow cytometry. Note an increase in the sub-G1 population at the higher doses of acetone extract. (<bold>B</bold>) C6 cells were treated with the indicated concentrations (µg/mL) of the acetone extract for 24 h and then stained with JC-1 (10 µg/mL). The cells were then washed and observed under fluorescence microscope. In control cells, the intense red fluorescence indicates high mitochondrial membrane potential. The presence of green fluorescence in treated cells suggests depolarized mitochondria. A concentration dependent decrease in the ratio of red/green fluorescence was observed (lower left). While red stained cells decreased in a concentration dependent manner, a significant increase in the green stained cells was observed (lower right). Where indicated, the values are mean ± SE from three experiments. *- indicates the significance of difference compared to the control group; <italic>P</italic> < 0.05. The scale bar represents 100 µm. AE, acetone extract.</p></caption><graphic xlink:href="biomolecules-09-00159-g003"></graphic></fig><fig id="biomolecules-09-00159-f004" orientation="portrait" position="float"><label>Figure 4</label><caption><p>Acetone extract suppresses the migration of C-6 glioma cells. The sterile microtips were used to scratch over the cells with 70% confluency. The different concentrations (µg/mL) of acetone extract was then provided to the cells. The scratched area was examined under phase contrast microscope. The percentage of wound size and healed area was measured at different time intervals. The values are mean ± SE from three experiments. *- indicates the significance of difference compared to the control group; <italic>P</italic> < 0.05. Note a decrease in the migration potential of C-6 cells after treatment with acetone extract. The scale bar represents 100 µm. AE, acetone extract.</p></caption><graphic xlink:href="biomolecules-09-00159-g004"></graphic></fig><fig id="biomolecules-09-00159-f005" orientation="portrait" position="float"><label>Figure 5</label><caption><p>Acetone extract induces reactive oxygen species (ROS) generation. (<bold>A</bold>) C-6 cells were treated with indicated concentrations (µg/mL) of acetone extract for 1 h. The cells were then stained with H<sub>2</sub>DCFDA (10 µM) for 30 min and ROS generation was measured by flow cytometry. (<bold>B</bold>) The stained cells were also visualized under fluorescence microscope. The arrows indicate DCFDA stained cells in the control and treated groups. Note a concentration dependent increase in the level of ROS (DCFDA stained cells) after treatment with acetone extract. The scale bar represents 100 µm. AE, acetone extract.</p></caption><graphic xlink:href="biomolecules-09-00159-g005"></graphic></fig><fig id="biomolecules-09-00159-f006" orientation="portrait" position="float"><label>Figure 6</label><caption><p>The rhizome extract of <italic>C. raktakanda</italic> suppresses the proliferation of cancer cells from diverse origin. Breast (MDA-MB-231, MCF-7) and cervical (HeLa) cells were exposed to different concentrations (µg/mL) of CR extracts (acetone, hexane, ethyl acetate) for 48 h. The viability of cells was examined by mitochondrial membrane potential (MTT) assay. Note that the cancer cells exhibited varied degree of sensitivity to the three extracts. Values are mean ± SE from three experiments. *- indicates the significance of difference compared to the control group; <italic>P</italic> < 0.05.</p></caption><graphic xlink:href="biomolecules-09-00159-g006"></graphic></fig><table-wrap id="biomolecules-09-00159-t001" orientation="portrait" position="float"><object-id pub-id-type="pii">biomolecules-09-00159-t001_Table 1</object-id><label>Table 1</label><caption><p>Gas chromatography-mass spectrometry (GC-MS) analysis of acetone extract of <italic>Curcuma raktakanda</italic>.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">S. No.</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Peak No.</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Retention Time (min)</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Area %</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Compound Name</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Molecular Weight</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Molecular Formula</th></tr></thead><tbody><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18.985</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.84</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13,17-Dimethylhentriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">464.907 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>33</sub>H<sub>68</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19.331</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.71</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Hexacosane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">366.718</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>26</sub>H<sub>54</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.129</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.75</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Eicosane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">282.5475</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>42</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.541</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.41</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetracontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">563.096</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>40</sub>H<sub>82</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21.219</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetracontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">563.096</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>40</sub>H<sub>82</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21.646</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.80</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Pentacosane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">352.691</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>25</sub>H<sub>52</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22.129</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.12</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Pentacosane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">352.691</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>25</sub>H<sub>52</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22.494</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.26</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Dotriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">450.88 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>32</sub>H<sub>66</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22.860</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.15</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetracontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">563.079 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>40</sub>H<sub>82</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27.890</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.08</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Acetic acid, 1-[2-(2,2,6-trimethyl-bicyclo[4.1.0]hept-1-yl)-ethyl]-vinyl ester</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">250.376 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>16</sub>H<sub>26</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">39.280</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.02</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Celidoniol, deoxy-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">424.798</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>29</sub>H<sub>60</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">40.494</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.20</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Nonacosane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">408.799 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>29</sub>H<sub>60</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">40.727</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.20</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Pentatriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">492.961</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>35</sub>H<sub>72</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">41.535</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.54</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Heneicosyl pentafluoropropionate</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">458.5890</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>24</sub>H<sub>43</sub>F<sub>5</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">15</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">15</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">42.352</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.40</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1,30-Triacontanediol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">454.812 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>30</sub>H<sub>62</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">43.000</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4.14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">(2e)-1-methyl-3-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-propenyl acetate</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">236.355</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">43.100</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6.16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Dotriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">450.88</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>32</sub>H<sub>66</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">43.286</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">38.53</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetracontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">563.096</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>40</sub>H<sub>82</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">44.396</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.33</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetratriacontyl heptafluorobutyrate</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">690.9421</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>38</sub>H<sub>69</sub>F<sub>7</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">44.620</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.21</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Pentatriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">492.961</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>35</sub>H<sub>72</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">44.890</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1-Hentetracontanol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">593.122</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>41</sub>H<sub>84</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">45.290</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.28</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetrapentacontane, 1,54-dibromo-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">917.266</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>54</sub>H<sub>108</sub>Br<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">23</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">23</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">46.220</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.67</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Hexatriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">506.988</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>36</sub>H<sub>74</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">24</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">24</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">46.746</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.52</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Hexatriacontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">506.988</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>36</sub>H<sub>74</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">25</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">25</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">48.345</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9.10</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">(-)-(1R,2R,4aS,8aS)-1-(2-Hydroxyethyl)-2,5,5,8a-tetramethyldecahydro-2-naphthalenol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">308.499 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>36</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">26</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">26</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">48.501</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27.22</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Tetracontane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">563.096</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>40</sub>H<sub>82</sub></td></tr></tbody></table><table-wrap-foot><fn><p>The compounds were detected using database NIST08s.LIB (Gaithersburg, MD, USA), WILEY8.LIB (Hoboken, NJ, USA), and PUBCHEM (NCBI, MD, USA).</p></fn></table-wrap-foot></table-wrap><table-wrap id="biomolecules-09-00159-t002" orientation="portrait" position="float"><object-id pub-id-type="pii">biomolecules-09-00159-t002_Table 2</object-id><label>Table 2</label><caption><p>GC-MS analysis of hexane extract of <italic>C. raktakanda</italic>.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">S. No.</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Peak<break></break>No.</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Retention Time (min)</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Area %</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Compound Name</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Molecular Weight</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Molecular Formula</th></tr></thead><tbody><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.277</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4.4</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Eucalyptol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">154.249 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>10</sub>H<sub>18</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11.516</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5.17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">(+)-2-Bornanone</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">152.2334</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>10</sub>H<sub>16</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16.746</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.88</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">.delta.-Elemene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.357</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18.206</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7.44</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2,4-diisopropenyl-1-methyl-1-vinylcyclohexane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.351 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19.222</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5.14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">.gamma.-Elemene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.3511</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.739</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.45</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">beta.-Selinene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.357</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.858</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.2</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Benzofuran, 6-ethenyl-4,5,6,7-tetrahydro-3,6-dimethyl-5-isopropenyl-, trans-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">216.3187</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>20</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">23.398</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16.84</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">beta.-Elemenone</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">218.34</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>22</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">24.044</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1H-Cycloprop[e]azulen-7-ol, decahydro-1,1,7-trimethyl-4-methylene-, [1ar-(1a.alpha.,4a.alpha.,7.beta.,7a.beta.,7b.alpha.)]-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.3505</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">25.539</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3.91</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3,7-Dimethyl-10-(1-methylethylidene)-3,7-cyclodecadien-1-one</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">218.3346</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>22</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">26.899</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.33</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5,8-Dihydroxy-4a-methyl-4,4a,4b,5,6,7,8,8a,9,10-decahydro-2(3H)-phenanthrenone</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">250.333 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>22</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27.652</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10.49</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Cycloprop[e]indene-1a,2(1H)-dicarboxaldehyde, 3a,4,5,6,6a,6b-hexahydro-5,5,6b-trimethyl-, (1a.alpha.,3a.beta.,6a.beta.,6b.alpha</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">232.323 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>20</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">28.643</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Elemene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.3511</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">28.958</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6.54</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Acetic acid, 6-(1-hydroxymethyl-vinyl)-4,8a-dimethyl-3-oxo-1,2,3,5,6,7,8,8a-octahydronaphthalen-2-yl ester</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">292.375</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1"> C<sub>17</sub>H<sub>24</sub>O<sub>4</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">15</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">15</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">29.872</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.72</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Bufa-20,22-dienolide, 14,15-epoxy-3,5,16-trihydroxy-, (3.beta.,5.beta.,15.beta.,16.beta.)-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">500.588 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>28</sub>H<sub>36</sub>O<sub>8</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">30.033</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.07</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Cyclohexane, 1-ethenyl-1-methyl-2-(1-methylethenyl)-4-(1-methylethylidene)-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.3511</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">31.13</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.41</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">n-Hexadecanoic acid</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">256.4241</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>16</sub>H<sub>32</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">31.617</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.51</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Hydroxydehydrostevic acid</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">318.457 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>30</sub>O<sub>3</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">35.362</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.67</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4,8,13-Cyclotetradecatriene-1,3-diol, 1,5,9-trimethyl-12-(1-methylethyl)-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">306.49</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>34</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">41.197</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.47</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Alloaromadendrene oxide-(1)</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.3505</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">44.861</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.01</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Longifolenaldehyde</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.356 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O </td></tr></tbody></table><table-wrap-foot><fn><p>The compounds were detected using database NIST08s.LIB (Gaithersburg, MD, USA), WILEY8.LIB (Hoboken, NJ, USA), and PUBCHEM (NCBI, MD, USA).</p></fn></table-wrap-foot></table-wrap><table-wrap id="biomolecules-09-00159-t003" orientation="portrait" position="float"><object-id pub-id-type="pii">biomolecules-09-00159-t003_Table 3</object-id><label>Table 3</label><caption><p>GC-MS analysis of ethyl acetate extract of <italic>C. raktakanda</italic>.</p></caption><table frame="hsides" rules="groups"><thead><tr><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">S. No.</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Peak No.</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Retention Time (min)</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Area %</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Compound Name</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Molecular Weight</th><th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Molecular Formula</th></tr></thead><tbody><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11.553</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.74</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">152.2334</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>10</sub>H<sub>16</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12.262</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.28</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Bicyclo[2.2.1]heptan-2-ol, 1,7,7-trimethyl-, (1S-endo)-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">196.2860</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>12</sub>H<sub>20</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18.197</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2,4-Diisopropenyl-1-methyl-1-vinylcyclohexane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.351 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18.435</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.52</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Hexadecane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">226.41</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>16</sub>H<sub>34</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19.219</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.68</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">.gamma.-Elemene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.357</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">6.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.743</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.33</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">.beta.-Selinene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.357</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">7.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.832</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.34</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">5-Isopropenyl-3,6-dimethyl-6-vinyl-4,5,6,7-tetrahydro-1-benzofuran</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">216.3187</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>20</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.951</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Heptadecane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">240.4677</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>17</sub>H<sub>36</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">23.346</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3.81</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">beta.-Elemenone</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">218.34</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>22</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">10.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">24.041</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.61</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Isospathulenol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.356</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">11.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">25.531</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.64</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">3,7-Dimethyl-10-(1-methylethylidene)-3,7-cyclodecadien-1-one</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">218.3346</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>22</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27.585</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.86</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Cycloprop[e]indene-1a,2(1H)-dicarboxaldehyde, 3a,4,5,6,6a,6b-hexahydro-5,5,6b-trimethyl-, (1a.alpha.,3a.beta.,6a.beta.,6b.alpha</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">232.323</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>20</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">13.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27.745</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.68</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Norethindrone</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">298.426</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>26</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">14</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">14.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27.864</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.25</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">(Albicanol) Decahydro-2-methylene-5,5,8a-trimethyl-1-naphthalenemethanol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">222.366 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>26</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">15</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">15.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">28.63</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.88</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9-t-Butyltricyclo[4.2.1.1(2,5)]decane-9,10-diol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">224.339 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>14</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">30.031</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.7</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">gamma.-Elemene</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">204.357</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">17</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">17.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">30.387</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.81</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Longifolenaldehyde</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.3505</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">18.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">31.097</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.46</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">l-(+)-Ascorbic acid 2,6-dihexadecanoate</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">652.954</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>38</sub>H<sub>68</sub>O<sub>8</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">19.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">33.24</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.32</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2-Hydroxy-4-isopropyl-7-methoxytropone</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">194.23</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>11</sub>H<sub>14</sub>O<sub>3</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">20.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">34.684</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.34</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Pregn-4,16-diene-3,20-dione dimethoxime</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">314.469</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>21</sub>H<sub>30</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">21.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">35.367</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.24</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4,8,13-Cyclotetradecatriene-1,3-diol, 1,5,9-trimethyl-12-(1-methylethyl)-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">306.49</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>34</sub>O<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">22.</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">36.495</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1.9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2H-Cyclohepta[b]furan-2-one, 6-[1-(acetyloxy)-3-oxobutyl]-3,3a,4,7,8,8a-hexahydro-7-methyl-3-methylene-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">306.146</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>17</sub>H<sub>22</sub>O<sub>5</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">23</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">23</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">38.001</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2.03</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4,7-Methanofuro[3,2-c]oxacycloundecin-6(4H)-one, 7,8,9,12-tetrahydro-3,11-dimethyl-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">246.306</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>18</sub>O<sub>3</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">24</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">24</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">39.499</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">0.9</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Behenic alcohol</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">326.6000</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>22</sub>H<sub>46</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">25</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">25</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">41.176</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">9.48</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1,1,6-trimethyl-3-methylene-2-(3,6,9,13-tetramethyl-6-ethenye-10,14-dimethylene-pentadec-4-enyl)cyclohexane</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.350 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">26</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">26</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">42.513</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">16</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2-Phosphabicyclo[3.1.0]hex-3-ene, 6,6-dimethyl-2,3,4-triphenyl-, (endo)-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">136.194 </td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>8</sub>H<sub>12</sub>N</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">27</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">43.429</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.67</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Cobalt, hexamethylbenzene-pentamethylcyclopentadienyl-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">329.39</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>20</sub>H<sub>30</sub>Co</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">28</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">28</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">44.587</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">12.6</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Desmethylnomifensine</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">224.307</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>16</sub>N<sub>2</sub></td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">29</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">29</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">44.871</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">8.26</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Longifolenaldehyde</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">220.3505</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>15</sub>H<sub>24</sub>O</td></tr><tr><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">30</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">30</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">46.344</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">4.34</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Furan, 2,5-bis(3,4-dimethoxyphenyl)tetrahydro-3,4-dimethyl-, [2S-(2.alpha.,3.beta.,4.alpha.,5.beta.)]-</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">372.461</td><td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">C<sub>22</sub>H<sub>28</sub>O<sub>5</sub></td></tr></tbody></table><table-wrap-foot><fn><p>The compounds were detected using database NIST08s.LIB (Gaithersburg, MD, USA), WILEY8.LIB (Hoboken, NJ, USA), and PUBCHEM (NCBI, MD, 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