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Xylan hydrolysis in Populus trichocarpa × P. deltoides and model substrates during hydrothermal pretreatment.

Identifieur interne : 001A53 ( Main/Exploration ); précédent : 001A52; suivant : 001A54

Xylan hydrolysis in Populus trichocarpa × P. deltoides and model substrates during hydrothermal pretreatment.

Auteurs : Heather L. Trajano [États-Unis] ; Sivakumar Pattathil [États-Unis] ; Bruce A. Tomkins [États-Unis] ; Timothy J. Tschaplinski [États-Unis] ; Michael G. Hahn [États-Unis] ; Gary J. Van Berkel [États-Unis] ; Charles E. Wyman [États-Unis]

Source :

RBID : pubmed:25545089

Descripteurs français

English descriptors

Abstract

Previous studies defined easy and difficult to hydrolyze fractions of hemicellulose that may result from bonds among cellulose, hemicellulose, and lignin. To understand how such bonds affect hydrolysis, Populus trichocarpa × Populus deltoides, holocellulose isolated from P. trichocarpa × P. deltoides and birchwood xylan were subjected to hydrothermal flow-through pretreatment. Samples were characterized by glycome profiling, HPLC, and UPLC-MS. Glycome profiling revealed steady fragmentation and removal of glycans from solids during hydrolysis. The extent of polysaccharide fragmentation, hydrolysis rate, and total xylose yield were lowest for P. trichocarpa × P. deltoides and greatest for birchwood xylan. Comparison of results from P. trichocarpa × P. deltoides and holocellulose suggested that lignin-carbohydrate complexes reduce hydrolysis rates and limit release of large xylooligomers. Smaller differences between results with holocellulose and birchwood xylan suggest xylan-cellulose hydrogen bonds limited hydrolysis, but to a lesser extent. These findings imply cell wall structure strongly influences hydrolysis.

DOI: 10.1016/j.biortech.2014.11.090
PubMed: 25545089


Affiliations:


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Le document en format XML

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<term>Biotechnology (methods)</term>
<term>Cellulose (isolation & purification)</term>
<term>Chromatography, High Pressure Liquid (MeSH)</term>
<term>Crosses, Genetic (MeSH)</term>
<term>Glucose (metabolism)</term>
<term>Glycomics (MeSH)</term>
<term>Hydrolysis (drug effects)</term>
<term>Lignin (isolation & purification)</term>
<term>Mass Spectrometry (MeSH)</term>
<term>Polymerization (drug effects)</term>
<term>Populus (metabolism)</term>
<term>Solvents (chemistry)</term>
<term>Temperature (MeSH)</term>
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<term>Cellulose (isolement et purification)</term>
<term>Chromatographie en phase liquide à haute performance (MeSH)</term>
<term>Croisements génétiques (MeSH)</term>
<term>Eau (pharmacologie)</term>
<term>Glucose (métabolisme)</term>
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<term>Hydrolyse (effets des médicaments et des substances chimiques)</term>
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<term>Solvants (composition chimique)</term>
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<term>Populus</term>
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<div type="abstract" xml:lang="en">Previous studies defined easy and difficult to hydrolyze fractions of hemicellulose that may result from bonds among cellulose, hemicellulose, and lignin. To understand how such bonds affect hydrolysis, Populus trichocarpa × Populus deltoides, holocellulose isolated from P. trichocarpa × P. deltoides and birchwood xylan were subjected to hydrothermal flow-through pretreatment. Samples were characterized by glycome profiling, HPLC, and UPLC-MS. Glycome profiling revealed steady fragmentation and removal of glycans from solids during hydrolysis. The extent of polysaccharide fragmentation, hydrolysis rate, and total xylose yield were lowest for P. trichocarpa × P. deltoides and greatest for birchwood xylan. Comparison of results from P. trichocarpa × P. deltoides and holocellulose suggested that lignin-carbohydrate complexes reduce hydrolysis rates and limit release of large xylooligomers. Smaller differences between results with holocellulose and birchwood xylan suggest xylan-cellulose hydrogen bonds limited hydrolysis, but to a lesser extent. These findings imply cell wall structure strongly influences hydrolysis.</div>
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<AbstractText>Previous studies defined easy and difficult to hydrolyze fractions of hemicellulose that may result from bonds among cellulose, hemicellulose, and lignin. To understand how such bonds affect hydrolysis, Populus trichocarpa × Populus deltoides, holocellulose isolated from P. trichocarpa × P. deltoides and birchwood xylan were subjected to hydrothermal flow-through pretreatment. Samples were characterized by glycome profiling, HPLC, and UPLC-MS. Glycome profiling revealed steady fragmentation and removal of glycans from solids during hydrolysis. The extent of polysaccharide fragmentation, hydrolysis rate, and total xylose yield were lowest for P. trichocarpa × P. deltoides and greatest for birchwood xylan. Comparison of results from P. trichocarpa × P. deltoides and holocellulose suggested that lignin-carbohydrate complexes reduce hydrolysis rates and limit release of large xylooligomers. Smaller differences between results with holocellulose and birchwood xylan suggest xylan-cellulose hydrogen bonds limited hydrolysis, but to a lesser extent. These findings imply cell wall structure strongly influences hydrolysis.</AbstractText>
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<ForeName>Heather L</ForeName>
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<Affiliation>Department of Chemical and Environmental Engineering and Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, 1084 Columbia Ave, Riverside, CA 92507, USA; Department of Chemical and Biological Engineering, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada(1); BioEnergy Science Center, Oak Ridge National Laboratory, PO Box 2008 MS6341, Oak Ridge, TN 37831, USA. Electronic address: heather.trajano@ubc.ca.</Affiliation>
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<Affiliation>Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd., Athens, GA 30602, USA; BioEnergy Science Center, Oak Ridge National Laboratory, PO Box 2008 MS6341, Oak Ridge, TN 37831, USA. Electronic address: siva@ccrc.uga.edu.</Affiliation>
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<ForeName>Gary J</ForeName>
<Initials>GJ</Initials>
<AffiliationInfo>
<Affiliation>Chemical Sciences Division, Oak Ridge National Laboratory, PO Box 2008 MS6341, Oak Ridge, TN 37831, USA; BioEnergy Science Center, Oak Ridge National Laboratory, PO Box 2008 MS6341, Oak Ridge, TN 37831, USA. Electronic address: vanberkelgj@ornl.gov.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Wyman</LastName>
<ForeName>Charles E</ForeName>
<Initials>CE</Initials>
<AffiliationInfo>
<Affiliation>Department of Chemical and Environmental Engineering and Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, 1084 Columbia Ave, Riverside, CA 92507, USA; BioEnergy Science Center, Oak Ridge National Laboratory, PO Box 2008 MS6341, Oak Ridge, TN 37831, USA. Electronic address: cewyman@engr.ucr.edu.</Affiliation>
</AffiliationInfo>
</Author>
</AuthorList>
<Language>eng</Language>
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<PublicationType UI="D016428">Journal Article</PublicationType>
<PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType>
<PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType>
</PublicationTypeList>
<ArticleDate DateType="Electronic">
<Year>2014</Year>
<Month>11</Month>
<Day>27</Day>
</ArticleDate>
</Article>
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<Country>England</Country>
<MedlineTA>Bioresour Technol</MedlineTA>
<NlmUniqueID>9889523</NlmUniqueID>
<ISSNLinking>0960-8524</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D012997">Solvents</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D014990">Xylans</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>059QF0KO0R</RegistryNumber>
<NameOfSubstance UI="D014867">Water</NameOfSubstance>
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<RegistryNumber>9004-34-6</RegistryNumber>
<NameOfSubstance UI="D002482">Cellulose</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>9005-53-2</RegistryNumber>
<NameOfSubstance UI="D008031">Lignin</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>A1TA934AKO</RegistryNumber>
<NameOfSubstance UI="D014994">Xylose</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>IY9XDZ35W2</RegistryNumber>
<NameOfSubstance UI="D005947">Glucose</NameOfSubstance>
</Chemical>
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<MeshHeadingList>
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<QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D002482" MajorTopicYN="N">Cellulose</DescriptorName>
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<DescriptorName UI="D058105" MajorTopicYN="N">Polymerization</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D012997" MajorTopicYN="N">Solvents</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
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<MeshHeading>
<DescriptorName UI="D013696" MajorTopicYN="Y">Temperature</DescriptorName>
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<MeshHeading>
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<QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014990" MajorTopicYN="N">Xylans</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014994" MajorTopicYN="N">Xylose</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="N">Hemicellulose</Keyword>
<Keyword MajorTopicYN="N">Hydrolysis</Keyword>
<Keyword MajorTopicYN="N">Lignin–carbohydrate complex</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="received">
<Year>2014</Year>
<Month>09</Month>
<Day>16</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="revised">
<Year>2014</Year>
<Month>11</Month>
<Day>20</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2014</Year>
<Month>11</Month>
<Day>21</Day>
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<PubMedPubDate PubStatus="entrez">
<Year>2014</Year>
<Month>12</Month>
<Day>30</Day>
<Hour>6</Hour>
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<PubMedPubDate PubStatus="pubmed">
<Year>2014</Year>
<Month>12</Month>
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<Minute>0</Minute>
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<PubMedPubDate PubStatus="medline">
<Year>2015</Year>
<Month>9</Month>
<Day>22</Day>
<Hour>6</Hour>
<Minute>0</Minute>
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</History>
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<ArticleId IdType="pubmed">25545089</ArticleId>
<ArticleId IdType="pii">S0960-8524(14)01704-0</ArticleId>
<ArticleId IdType="doi">10.1016/j.biortech.2014.11.090</ArticleId>
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<affiliations>
<list>
<country>
<li>États-Unis</li>
</country>
<region>
<li>Tennessee</li>
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</list>
<tree>
<country name="États-Unis">
<region name="Tennessee">
<name sortKey="Trajano, Heather L" sort="Trajano, Heather L" uniqKey="Trajano H" first="Heather L" last="Trajano">Heather L. Trajano</name>
</region>
<name sortKey="Hahn, Michael G" sort="Hahn, Michael G" uniqKey="Hahn M" first="Michael G" last="Hahn">Michael G. Hahn</name>
<name sortKey="Pattathil, Sivakumar" sort="Pattathil, Sivakumar" uniqKey="Pattathil S" first="Sivakumar" last="Pattathil">Sivakumar Pattathil</name>
<name sortKey="Tomkins, Bruce A" sort="Tomkins, Bruce A" uniqKey="Tomkins B" first="Bruce A" last="Tomkins">Bruce A. Tomkins</name>
<name sortKey="Tschaplinski, Timothy J" sort="Tschaplinski, Timothy J" uniqKey="Tschaplinski T" first="Timothy J" last="Tschaplinski">Timothy J. Tschaplinski</name>
<name sortKey="Van Berkel, Gary J" sort="Van Berkel, Gary J" uniqKey="Van Berkel G" first="Gary J" last="Van Berkel">Gary J. Van Berkel</name>
<name sortKey="Wyman, Charles E" sort="Wyman, Charles E" uniqKey="Wyman C" first="Charles E" last="Wyman">Charles E. Wyman</name>
</country>
</tree>
</affiliations>
</record>

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