Fractionation of alkali-solubilized hemicelluloses from delignified Populus gansuensis: structure and properties.
Identifieur interne : 003260 ( Main/Exploration ); précédent : 003259; suivant : 003261Fractionation of alkali-solubilized hemicelluloses from delignified Populus gansuensis: structure and properties.
Auteurs : Feng Peng [République populaire de Chine] ; Jun-Li Ren ; Feng Xu ; Jing Bian ; Pai Peng ; Run-Cang SunSource :
- Journal of agricultural and food chemistry [ 1520-5118 ] ; 2010.
Descripteurs français
- KwdFr :
- Alcalis (composition chimique), Chromatographie d'échange d'ions (MeSH), Chromatographie en phase liquide à haute performance (MeSH), Chromatographie sur gel (MeSH), Conformation des glucides (MeSH), Polyosides (composition chimique), Populus (composition chimique), Solubilité (MeSH), Spectroscopie infrarouge à transformée de Fourier (MeSH), Spectroscopie par résonance magnétique (MeSH).
- MESH :
English descriptors
- KwdEn :
- Alkalies (chemistry), Carbohydrate Conformation (MeSH), Chromatography, Gel (MeSH), Chromatography, High Pressure Liquid (MeSH), Chromatography, Ion Exchange (MeSH), Magnetic Resonance Spectroscopy (MeSH), Polysaccharides (chemistry), Populus (chemistry), Solubility (MeSH), Spectroscopy, Fourier Transform Infrared (MeSH).
- MESH :
Abstract
The dewaxed cell walls of Populus gansuensis were delignified with NaClO(2) and then sequentially extracted with 0.25, 0.5, and 1.0 M KOH under a solid to liquid ratio of 1: 25 (g mL(-1)) at 25 degrees C for 10 h. The successive treatments together resulted in the dissolution of 83.7% of original hemicelluloses. The solubilized hemicellulosic fractions were further fractionated into six hemicellulosic subfractions by an iodine-complex precipitation technique. Their chemical and physical characteristics were determined by HPAEC, GPC, FT-IR, and (1)H and (13)C NMR spectroscopy. Neutral sugar composition and molecular weight analysis showed that, for each extract, the hemicellulosic subfractions that precipitated with aqueous potassium iodide-iodine had lower overall uronic acid/xylose (Uro/Xyl) ratios and higher molecular weights (M(w)) than those remaining in the solution. FT-IR, (1)H, and (13)C NMR spectroscopy analysis indicated that the alkali-soluble hemicelluloses of Populus gansuensis had a structure composed of the (1 --> 4)-linked beta-D-xylopyranosyl backbone with 4-O-methyl-alpha-D-glucuronic acid attached to O-2 of the xylose residues.
DOI: 10.1021/jf1003368
PubMed: 20302372
Affiliations:
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last="Xu">Feng Xu</name></author><author><name sortKey="Bian, Jing" sort="Bian, Jing" uniqKey="Bian J" first="Jing" last="Bian">Jing Bian</name></author><author><name sortKey="Peng, Pai" sort="Peng, Pai" uniqKey="Peng P" first="Pai" last="Peng">Pai Peng</name></author><author><name sortKey="Sun, Run Cang" sort="Sun, Run Cang" uniqKey="Sun R" first="Run-Cang" last="Sun">Run-Cang Sun</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20302372</idno><idno type="pmid">20302372</idno><idno type="doi">10.1021/jf1003368</idno><idno type="wicri:Area/Main/Corpus">003262</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003262</idno><idno type="wicri:Area/Main/Curation">003262</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003262</idno><idno 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sortKey="Xu, Feng" sort="Xu, Feng" uniqKey="Xu F" first="Feng" last="Xu">Feng Xu</name></author><author><name sortKey="Bian, Jing" sort="Bian, Jing" uniqKey="Bian J" first="Jing" last="Bian">Jing Bian</name></author><author><name sortKey="Peng, Pai" sort="Peng, Pai" uniqKey="Peng P" first="Pai" last="Peng">Pai Peng</name></author><author><name sortKey="Sun, Run Cang" sort="Sun, Run Cang" uniqKey="Sun R" first="Run-Cang" last="Sun">Run-Cang Sun</name></author></analytic><series><title level="j">Journal of agricultural and food chemistry</title><idno type="eISSN">1520-5118</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alkalies (chemistry)</term><term>Carbohydrate Conformation (MeSH)</term><term>Chromatography, Gel (MeSH)</term><term>Chromatography, High Pressure Liquid (MeSH)</term><term>Chromatography, Ion Exchange (MeSH)</term><term>Magnetic Resonance Spectroscopy (MeSH)</term><term>Polysaccharides (chemistry)</term><term>Populus (chemistry)</term><term>Solubility (MeSH)</term><term>Spectroscopy, Fourier Transform Infrared (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alcalis (composition chimique)</term><term>Chromatographie d'échange d'ions (MeSH)</term><term>Chromatographie en phase liquide à haute performance (MeSH)</term><term>Chromatographie sur gel (MeSH)</term><term>Conformation des glucides (MeSH)</term><term>Polyosides (composition chimique)</term><term>Populus (composition chimique)</term><term>Solubilité (MeSH)</term><term>Spectroscopie infrarouge à transformée de Fourier (MeSH)</term><term>Spectroscopie par résonance magnétique (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Alkalies</term><term>Polysaccharides</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Alcalis</term><term>Polyosides</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Carbohydrate Conformation</term><term>Chromatography, Gel</term><term>Chromatography, High Pressure Liquid</term><term>Chromatography, Ion Exchange</term><term>Magnetic Resonance Spectroscopy</term><term>Solubility</term><term>Spectroscopy, Fourier Transform Infrared</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Chromatographie d'échange d'ions</term><term>Chromatographie en phase liquide à haute performance</term><term>Chromatographie sur gel</term><term>Conformation des glucides</term><term>Solubilité</term><term>Spectroscopie infrarouge à transformée de Fourier</term><term>Spectroscopie par résonance magnétique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The dewaxed cell walls of Populus gansuensis were delignified with NaClO(2) and then sequentially extracted with 0.25, 0.5, and 1.0 M KOH under a solid to liquid ratio of 1: 25 (g mL(-1)) at 25 degrees C for 10 h. The successive treatments together resulted in the dissolution of 83.7% of original hemicelluloses. The solubilized hemicellulosic fractions were further fractionated into six hemicellulosic subfractions by an iodine-complex precipitation technique. Their chemical and physical characteristics were determined by HPAEC, GPC, FT-IR, and (1)H and (13)C NMR spectroscopy. Neutral sugar composition and molecular weight analysis showed that, for each extract, the hemicellulosic subfractions that precipitated with aqueous potassium iodide-iodine had lower overall uronic acid/xylose (Uro/Xyl) ratios and higher molecular weights (M(w)) than those remaining in the solution. FT-IR, (1)H, and (13)C NMR spectroscopy analysis indicated that the alkali-soluble hemicelluloses of Populus gansuensis had a structure composed of the (1 --> 4)-linked beta-D-xylopyranosyl backbone with 4-O-methyl-alpha-D-glucuronic acid attached to O-2 of the xylose residues.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20302372</PMID><DateCompleted><Year>2010</Year><Month>08</Month><Day>06</Day></DateCompleted><DateRevised><Year>2010</Year><Month>05</Month><Day>05</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1520-5118</ISSN><JournalIssue CitedMedium="Internet"><Volume>58</Volume><Issue>9</Issue><PubDate><Year>2010</Year><Month>May</Month><Day>12</Day></PubDate></JournalIssue><Title>Journal of agricultural and food chemistry</Title><ISOAbbreviation>J Agric Food Chem</ISOAbbreviation></Journal><ArticleTitle>Fractionation of alkali-solubilized hemicelluloses from delignified Populus gansuensis: structure and properties.</ArticleTitle><Pagination><MedlinePgn>5743-50</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/jf1003368</ELocationID><Abstract><AbstractText>The dewaxed cell walls of Populus gansuensis were delignified with NaClO(2) and then sequentially extracted with 0.25, 0.5, and 1.0 M KOH under a solid to liquid ratio of 1: 25 (g mL(-1)) at 25 degrees C for 10 h. The successive treatments together resulted in the dissolution of 83.7% of original hemicelluloses. The solubilized hemicellulosic fractions were further fractionated into six hemicellulosic subfractions by an iodine-complex precipitation technique. Their chemical and physical characteristics were determined by HPAEC, GPC, FT-IR, and (1)H and (13)C NMR spectroscopy. Neutral sugar composition and molecular weight analysis showed that, for each extract, the hemicellulosic subfractions that precipitated with aqueous potassium iodide-iodine had lower overall uronic acid/xylose (Uro/Xyl) ratios and higher molecular weights (M(w)) than those remaining in the solution. FT-IR, (1)H, and (13)C NMR spectroscopy analysis indicated that the alkali-soluble hemicelluloses of Populus gansuensis had a structure composed of the (1 --> 4)-linked beta-D-xylopyranosyl backbone with 4-O-methyl-alpha-D-glucuronic acid attached to O-2 of the xylose residues.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Peng</LastName><ForeName>Feng</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ren</LastName><ForeName>Jun-Li</ForeName><Initials>JL</Initials></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Feng</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Bian</LastName><ForeName>Jing</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Peng</LastName><ForeName>Pai</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Sun</LastName><ForeName>Run-Cang</ForeName><Initials>RC</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Agric Food Chem</MedlineTA><NlmUniqueID>0374755</NlmUniqueID><ISSNLinking>0021-8561</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000468">Alkalies</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D011134">Polysaccharides</NameOfSubstance></Chemical><Chemical><RegistryNumber>8024-50-8</RegistryNumber><NameOfSubstance UI="C007916">hemicellulose</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000468" MajorTopicYN="N">Alkalies</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002236" MajorTopicYN="N">Carbohydrate Conformation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002850" MajorTopicYN="N">Chromatography, Gel</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002851" MajorTopicYN="N">Chromatography, High Pressure Liquid</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002852" MajorTopicYN="N">Chromatography, Ion Exchange</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009682" MajorTopicYN="N">Magnetic Resonance Spectroscopy</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011134" MajorTopicYN="N">Polysaccharides</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012995" MajorTopicYN="N">Solubility</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017550" MajorTopicYN="N">Spectroscopy, Fourier Transform Infrared</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>3</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>3</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>8</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20302372</ArticleId><ArticleId IdType="doi">10.1021/jf1003368</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country><region><li>Guangdong</li></region><settlement><li>Jiangmen</li></settlement></list><tree><noCountry><name sortKey="Bian, Jing" sort="Bian, Jing" uniqKey="Bian J" first="Jing" last="Bian">Jing Bian</name><name sortKey="Peng, Pai" sort="Peng, Pai" uniqKey="Peng P" first="Pai" last="Peng">Pai Peng</name><name sortKey="Ren, Jun Li" sort="Ren, Jun Li" uniqKey="Ren J" first="Jun-Li" last="Ren">Jun-Li Ren</name><name sortKey="Sun, Run Cang" sort="Sun, Run Cang" uniqKey="Sun R" first="Run-Cang" last="Sun">Run-Cang Sun</name><name sortKey="Xu, Feng" sort="Xu, Feng" uniqKey="Xu F" first="Feng" last="Xu">Feng Xu</name></noCountry><country name="République populaire de Chine"><region name="Guangdong"><name sortKey="Peng, Feng" sort="Peng, Feng" uniqKey="Peng F" first="Feng" last="Peng">Feng Peng</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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