Carbohydrate reactions during high-temperature steam treatment of aspen wood.
Identifieur interne : 004095 ( Main/Exploration ); précédent : 004094; suivant : 004096Carbohydrate reactions during high-temperature steam treatment of aspen wood.
Auteurs : Jiebing Li [Suède] ; Gunnar Henriksson ; Göran GellerstedtSource :
- Applied biochemistry and biotechnology [ 0273-2289 ] ; 2005.
Descripteurs français
- KwdFr :
- Bois (MeSH), Cellulase (composition chimique), Cellulose (composition chimique), Concentration en ions d'hydrogène (MeSH), Glucides (composition chimique), Hydrolyse (MeSH), Lignine (composition chimique), Populus (composition chimique), Taille de particule (MeSH), Température élevée (MeSH), Vapeur (MeSH), bêta-Glucosidase (composition chimique).
- MESH :
- composition chimique : Cellulase, Cellulose, Glucides, Lignine, Populus, bêta-Glucosidase.
- Bois, Concentration en ions d'hydrogène, Hydrolyse, Taille de particule, Température élevée, Vapeur.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Carbohydrates, Cellulase, Cellulose, Lignin, beta-Glucosidase.
- chemistry : Populus.
- Hot Temperature, Hydrogen-Ion Concentration, Hydrolysis, Particle Size, Steam, Wood.
Abstract
Aspen wood was treated with steam at different time-temperature severity factors. Analysis of the amounts of acids released revealed a relationship between the acidity and the formation of furfural and hydroxymethyl furfural as degradation products from carbohydrates. It is suggested that two concurrent or consecutive mechanisms are responsible for the observed results: a homolytic cleavage and an acid hydrolysis of glucosidic linkages in the polysaccharides. By preimpregnating the wood with alkali, hydrolysis can be eliminated, resulting in a much cleaner depolymerization of the polysaccharides without any further acid-catalyzed degradation. The enzymatic digestibility of the steam-treated wood material for the formation of glucose was compared with that of steam-exploded wood. A more efficient route for glucose production from steam-exploded wood was found as long as the biomass-pretreated material was homogeneous and without shives.
DOI: 10.1385/abab:125:3:175
PubMed: 15917581
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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uniqKey="Gellerstedt G" first="Göran" last="Gellerstedt">Göran Gellerstedt</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:15917581</idno><idno type="pmid">15917581</idno><idno type="doi">10.1385/abab:125:3:175</idno><idno type="wicri:Area/Main/Corpus">004051</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">004051</idno><idno type="wicri:Area/Main/Curation">004051</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">004051</idno><idno type="wicri:Area/Main/Exploration">004051</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Carbohydrate reactions during high-temperature steam treatment of aspen wood.</title><author><name sortKey="Li, Jiebing" sort="Li, Jiebing" uniqKey="Li J" first="Jiebing" last="Li">Jiebing Li</name><affiliation wicri:level="3"><nlm:affiliation>Department of Fiber and Polymer Technology, Royal Institute of Technology, KTH, SE-100 44, Stockholm, Sweden. jbing@polymer.kth.se</nlm:affiliation><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Fiber and Polymer Technology, Royal Institute of Technology, KTH, SE-100 44, Stockholm</wicri:regionArea><placeName><settlement type="city">Stockholm</settlement><region nuts="2">Svealand</region></placeName></affiliation></author><author><name sortKey="Henriksson, Gunnar" sort="Henriksson, Gunnar" uniqKey="Henriksson G" first="Gunnar" last="Henriksson">Gunnar Henriksson</name></author><author><name sortKey="Gellerstedt, Goran" sort="Gellerstedt, Goran" uniqKey="Gellerstedt G" first="Göran" last="Gellerstedt">Göran Gellerstedt</name></author></analytic><series><title level="j">Applied biochemistry and biotechnology</title><idno type="ISSN">0273-2289</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Carbohydrates (chemistry)</term><term>Cellulase (chemistry)</term><term>Cellulose (chemistry)</term><term>Hot Temperature (MeSH)</term><term>Hydrogen-Ion Concentration (MeSH)</term><term>Hydrolysis (MeSH)</term><term>Lignin (chemistry)</term><term>Particle Size (MeSH)</term><term>Populus (chemistry)</term><term>Steam (MeSH)</term><term>Wood (MeSH)</term><term>beta-Glucosidase (chemistry)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Bois (MeSH)</term><term>Cellulase (composition chimique)</term><term>Cellulose (composition chimique)</term><term>Concentration en ions d'hydrogène (MeSH)</term><term>Glucides (composition chimique)</term><term>Hydrolyse (MeSH)</term><term>Lignine (composition chimique)</term><term>Populus (composition chimique)</term><term>Taille de particule (MeSH)</term><term>Température élevée (MeSH)</term><term>Vapeur (MeSH)</term><term>bêta-Glucosidase (composition chimique)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Carbohydrates</term><term>Cellulase</term><term>Cellulose</term><term>Lignin</term><term>beta-Glucosidase</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Cellulase</term><term>Cellulose</term><term>Glucides</term><term>Lignine</term><term>Populus</term><term>bêta-Glucosidase</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Hot Temperature</term><term>Hydrogen-Ion Concentration</term><term>Hydrolysis</term><term>Particle Size</term><term>Steam</term><term>Wood</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Bois</term><term>Concentration en ions d'hydrogène</term><term>Hydrolyse</term><term>Taille de particule</term><term>Température élevée</term><term>Vapeur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Aspen wood was treated with steam at different time-temperature severity factors. Analysis of the amounts of acids released revealed a relationship between the acidity and the formation of furfural and hydroxymethyl furfural as degradation products from carbohydrates. It is suggested that two concurrent or consecutive mechanisms are responsible for the observed results: a homolytic cleavage and an acid hydrolysis of glucosidic linkages in the polysaccharides. By preimpregnating the wood with alkali, hydrolysis can be eliminated, resulting in a much cleaner depolymerization of the polysaccharides without any further acid-catalyzed degradation. The enzymatic digestibility of the steam-treated wood material for the formation of glucose was compared with that of steam-exploded wood. A more efficient route for glucose production from steam-exploded wood was found as long as the biomass-pretreated material was homogeneous and without shives.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15917581</PMID><DateCompleted><Year>2005</Year><Month>08</Month><Day>23</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>11</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0273-2289</ISSN><JournalIssue CitedMedium="Print"><Volume>125</Volume><Issue>3</Issue><PubDate><Year>2005</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Applied biochemistry and biotechnology</Title><ISOAbbreviation>Appl Biochem Biotechnol</ISOAbbreviation></Journal><ArticleTitle>Carbohydrate reactions during high-temperature steam treatment of aspen wood.</ArticleTitle><Pagination><MedlinePgn>175-88</MedlinePgn></Pagination><Abstract><AbstractText>Aspen wood was treated with steam at different time-temperature severity factors. Analysis of the amounts of acids released revealed a relationship between the acidity and the formation of furfural and hydroxymethyl furfural as degradation products from carbohydrates. It is suggested that two concurrent or consecutive mechanisms are responsible for the observed results: a homolytic cleavage and an acid hydrolysis of glucosidic linkages in the polysaccharides. By preimpregnating the wood with alkali, hydrolysis can be eliminated, resulting in a much cleaner depolymerization of the polysaccharides without any further acid-catalyzed degradation. The enzymatic digestibility of the steam-treated wood material for the formation of glucose was compared with that of steam-exploded wood. A more efficient route for glucose production from steam-exploded wood was found as long as the biomass-pretreated material was homogeneous and without shives.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Jiebing</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Department of Fiber and Polymer Technology, Royal Institute of Technology, KTH, SE-100 44, Stockholm, Sweden. jbing@polymer.kth.se</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Henriksson</LastName><ForeName>Gunnar</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Gellerstedt</LastName><ForeName>Göran</ForeName><Initials>G</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>Appl Biochem Biotechnol</MedlineTA><NlmUniqueID>8208561</NlmUniqueID><ISSNLinking>0273-2289</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D002241">Carbohydrates</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D013227">Steam</NameOfSubstance></Chemical><Chemical><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>EC 3.2.1.21</RegistryNumber><NameOfSubstance UI="D001617">beta-Glucosidase</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 3.2.1.4</RegistryNumber><NameOfSubstance UI="D002480">Cellulase</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002241" MajorTopicYN="N">Carbohydrates</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002480" MajorTopicYN="N">Cellulase</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002482" MajorTopicYN="N">Cellulose</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006358" MajorTopicYN="Y">Hot Temperature</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006863" MajorTopicYN="N">Hydrogen-Ion Concentration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006868" MajorTopicYN="N">Hydrolysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010316" MajorTopicYN="N">Particle Size</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013227" MajorTopicYN="Y">Steam</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014934" MajorTopicYN="Y">Wood</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001617" MajorTopicYN="N">beta-Glucosidase</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2004</Year><Month>07</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2005</Year><Month>02</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2005</Year><Month>02</Month><Day>04</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2005</Year><Month>5</Month><Day>27</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2005</Year><Month>8</Month><Day>24</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2005</Year><Month>5</Month><Day>27</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15917581</ArticleId><ArticleId IdType="pii">ABAB:125:3:175</ArticleId><ArticleId IdType="doi">10.1385/abab:125:3:175</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Suède</li></country><region><li>Svealand</li></region><settlement><li>Stockholm</li></settlement></list><tree><noCountry><name sortKey="Gellerstedt, Goran" sort="Gellerstedt, Goran" uniqKey="Gellerstedt G" first="Göran" last="Gellerstedt">Göran Gellerstedt</name><name sortKey="Henriksson, Gunnar" sort="Henriksson, Gunnar" uniqKey="Henriksson G" first="Gunnar" last="Henriksson">Gunnar Henriksson</name></noCountry><country name="Suède"><region name="Svealand"><name sortKey="Li, Jiebing" sort="Li, Jiebing" uniqKey="Li J" first="Jiebing" last="Li">Jiebing Li</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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