Enhanced Production of Xylitol from Poplar Wood Hydrolysates Through a Sustainable Process Using Immobilized New Strain Candida tropicalis UFMG BX 12-a.
Identifieur interne : 001409 ( Main/Exploration ); précédent : 001408; suivant : 001410Enhanced Production of Xylitol from Poplar Wood Hydrolysates Through a Sustainable Process Using Immobilized New Strain Candida tropicalis UFMG BX 12-a.
Auteurs : Sai Swaroop Dalli [Canada] ; Silvio Silverio Da Silva [Brésil] ; Bijaya K. Uprety [Canada] ; Sudip K. Rakshit [Canada]Source :
- Applied biochemistry and biotechnology [ 1559-0291 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
- biosynthèse : Xylitol.
- composition chimique : Bois.
- croissance et développement : Candida tropicalis.
English descriptors
- KwdEn :
- MESH :
- chemical , biosynthesis : Xylitol.
- chemistry : Wood.
- growth & development : Candida tropicalis.
Abstract
A new strain, Candida tropicalis UFMG BX 12-a, was found to produce higher yields of xylitol on poplar wood hemicellulose hydrolysate. The hemicellulose hydrolysate liquor was detoxified using a novel method we developed, involving vacuum evaporation and solvent separation of inhibitors which made the hydrolysate free of toxins while retaining high concentrations of fermentable sugars. The effect of the detoxification method on the fermentation was also reported and compared to well-known methods reported in literature. In this study, the new strain C. tropicalis UFMG BX 12-a was used on the detoxified hydrolysate to produce xylitol. It was also compared to Candida guilliermondii FTI 20037, which has been reported to be one of the best strains for fermentative production of xylitol. To further improve the efficiency of the fermentation process, these strains were immobilized in calcium alginate beads. The yield (0.92 g g-1) and productivity (0.88 g L-1 h-1) obtained by fermenting the wood hydrolysate detoxified by our new detoxification technique using an immobilized new Candida strain were found to be higher than the values reported in literature.
DOI: 10.1007/s12010-016-2381-4
PubMed: 28054259
Affiliations:
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Uprety</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biotechnology, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Biotechnology, Lakehead University, Thunder Bay, ON, P7B 5E1</wicri:regionArea><wicri:noRegion>P7B 5E1</wicri:noRegion></affiliation></author><author><name sortKey="Rakshit, Sudip K" sort="Rakshit, Sudip K" uniqKey="Rakshit S" first="Sudip K" last="Rakshit">Sudip K. Rakshit</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemistry and Material Sciences, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada. srakshit@lakeheadu.ca.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Chemistry and Material Sciences, Lakehead University, Thunder Bay, ON, P7B 5E1</wicri:regionArea><wicri:noRegion>P7B 5E1</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Department of Biotechnology, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada. srakshit@lakeheadu.ca.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Biotechnology, Lakehead University, Thunder Bay, ON, P7B 5E1</wicri:regionArea><wicri:noRegion>P7B 5E1</wicri:noRegion></affiliation></author></analytic><series><title level="j">Applied biochemistry and biotechnology</title><idno type="eISSN">1559-0291</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Candida tropicalis (growth & development)</term><term>Wood (chemistry)</term><term>Xylitol (biosynthesis)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Bois (composition chimique)</term><term>Candida tropicalis (croissance et développement)</term><term>Xylitol (biosynthèse)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Xylitol</term></keywords><keywords scheme="MESH" qualifier="biosynthèse" xml:lang="fr"><term>Xylitol</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Wood</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Bois</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Candida tropicalis</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Candida tropicalis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A new strain, Candida tropicalis UFMG BX 12-a, was found to produce higher yields of xylitol on poplar wood hemicellulose hydrolysate. The hemicellulose hydrolysate liquor was detoxified using a novel method we developed, involving vacuum evaporation and solvent separation of inhibitors which made the hydrolysate free of toxins while retaining high concentrations of fermentable sugars. The effect of the detoxification method on the fermentation was also reported and compared to well-known methods reported in literature. In this study, the new strain C. tropicalis UFMG BX 12-a was used on the detoxified hydrolysate to produce xylitol. It was also compared to Candida guilliermondii FTI 20037, which has been reported to be one of the best strains for fermentative production of xylitol. To further improve the efficiency of the fermentation process, these strains were immobilized in calcium alginate beads. The yield (0.92 g g<sup>-1</sup>) and productivity (0.88 g L<sup>-1</sup> h<sup>-1</sup>) obtained by fermenting the wood hydrolysate detoxified by our new detoxification technique using an immobilized new Candida strain were found to be higher than the values reported in literature.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28054259</PMID><DateCompleted><Year>2017</Year><Month>06</Month><Day>26</Day></DateCompleted><DateRevised><Year>2017</Year><Month>06</Month><Day>26</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1559-0291</ISSN><JournalIssue CitedMedium="Internet"><Volume>182</Volume><Issue>3</Issue><PubDate><Year>2017</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Applied biochemistry and biotechnology</Title><ISOAbbreviation>Appl Biochem Biotechnol</ISOAbbreviation></Journal><ArticleTitle>Enhanced Production of Xylitol from Poplar Wood Hydrolysates Through a Sustainable Process Using Immobilized New Strain Candida tropicalis UFMG BX 12-a.</ArticleTitle><Pagination><MedlinePgn>1053-1064</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s12010-016-2381-4</ELocationID><Abstract><AbstractText>A new strain, Candida tropicalis UFMG BX 12-a, was found to produce higher yields of xylitol on poplar wood hemicellulose hydrolysate. The hemicellulose hydrolysate liquor was detoxified using a novel method we developed, involving vacuum evaporation and solvent separation of inhibitors which made the hydrolysate free of toxins while retaining high concentrations of fermentable sugars. The effect of the detoxification method on the fermentation was also reported and compared to well-known methods reported in literature. In this study, the new strain C. tropicalis UFMG BX 12-a was used on the detoxified hydrolysate to produce xylitol. It was also compared to Candida guilliermondii FTI 20037, which has been reported to be one of the best strains for fermentative production of xylitol. To further improve the efficiency of the fermentation process, these strains were immobilized in calcium alginate beads. The yield (0.92 g g<sup>-1</sup>) and productivity (0.88 g L<sup>-1</sup> h<sup>-1</sup>) obtained by fermenting the wood hydrolysate detoxified by our new detoxification technique using an immobilized new Candida strain were found to be higher than the values reported in literature.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Dalli</LastName><ForeName>Sai Swaroop</ForeName><Initials>SS</Initials><AffiliationInfo><Affiliation>Department of Chemistry and Material Sciences, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>da Silva</LastName><ForeName>Silvio Silverio</ForeName><Initials>SS</Initials><AffiliationInfo><Affiliation>Department of Biotechnology, Engineering School of Lorena, University of Sao Paulo, Sao Paulo, 12602 810, Brazil.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Uprety</LastName><ForeName>Bijaya K</ForeName><Initials>BK</Initials><AffiliationInfo><Affiliation>Department of Biotechnology, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rakshit</LastName><ForeName>Sudip K</ForeName><Initials>SK</Initials><AffiliationInfo><Affiliation>Department of Chemistry and Material Sciences, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada. srakshit@lakeheadu.ca.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Department of Biotechnology, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada. srakshit@lakeheadu.ca.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>01</Month><Day>04</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Appl Biochem Biotechnol</MedlineTA><NlmUniqueID>8208561</NlmUniqueID><ISSNLinking>0273-2289</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>VCQ006KQ1E</RegistryNumber><NameOfSubstance UI="D014993">Xylitol</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D041022" MajorTopicYN="N">Candida tropicalis</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="N">Wood</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014993" MajorTopicYN="N">Xylitol</DescriptorName><QualifierName UI="Q000096" MajorTopicYN="Y">biosynthesis</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Candida guilliermondii</Keyword><Keyword MajorTopicYN="N">Candida tropicalis</Keyword><Keyword MajorTopicYN="N">Efficient fermentation</Keyword><Keyword MajorTopicYN="N">Novel detoxification</Keyword><Keyword MajorTopicYN="N">Wood hydrolysate</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>11</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2016</Year><Month>12</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>1</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>6</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>1</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28054259</ArticleId><ArticleId IdType="doi">10.1007/s12010-016-2381-4</ArticleId><ArticleId IdType="pii">10.1007/s12010-016-2381-4</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Brésil</li><li>Canada</li></country><region><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement><orgName><li>Université de São Paulo</li></orgName></list><tree><country name="Canada"><noRegion><name sortKey="Dalli, Sai Swaroop" sort="Dalli, Sai Swaroop" uniqKey="Dalli S" first="Sai Swaroop" last="Dalli">Sai Swaroop Dalli</name></noRegion><name sortKey="Rakshit, Sudip K" sort="Rakshit, Sudip K" uniqKey="Rakshit S" first="Sudip K" last="Rakshit">Sudip K. Rakshit</name><name sortKey="Rakshit, Sudip K" sort="Rakshit, Sudip K" uniqKey="Rakshit S" first="Sudip K" last="Rakshit">Sudip K. Rakshit</name><name sortKey="Uprety, Bijaya K" sort="Uprety, Bijaya K" uniqKey="Uprety B" first="Bijaya K" last="Uprety">Bijaya K. Uprety</name></country><country name="Brésil"><region name="État de São Paulo"><name sortKey="Da Silva, Silvio Silverio" sort="Da Silva, Silvio Silverio" uniqKey="Da Silva S" first="Silvio Silverio" last="Da Silva">Silvio Silverio Da Silva</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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