Structural transformation of hemicelluloses and lignin from triploid poplar during acid-pretreatment based biorefinery process.
Identifieur interne : 002905 ( Main/Exploration ); précédent : 002904; suivant : 002906Structural transformation of hemicelluloses and lignin from triploid poplar during acid-pretreatment based biorefinery process.
Auteurs : Kun Wang [République populaire de Chine] ; Haiyan Yang ; Xi Yao ; Feng Xu ; Run-Cang SunSource :
- Bioresource technology [ 1873-2976 ] ; 2012.
Descripteurs français
- KwdFr :
- Acides sulfuriques (pharmacologie), Aldéhydes (analyse), Biomasse (MeSH), Biotechnologie (méthodes), Fractionnement chimique (MeSH), Hydroxybenzoates (analyse), Lignine (composition chimique), Masse moléculaire (MeSH), Paroi cellulaire (composition chimique), Paroi cellulaire (effets des médicaments et des substances chimiques), Phénols (analyse), Polyosides (composition chimique), Populus (effets des médicaments et des substances chimiques), Spectroscopie par résonance magnétique (MeSH), Triploïdie (MeSH).
- MESH :
- analyse : Aldéhydes, Hydroxybenzoates, Phénols.
- composition chimique : Lignine, Paroi cellulaire, Polyosides.
- effets des médicaments et des substances chimiques : Paroi cellulaire, Populus.
- méthodes : Biotechnologie.
- pharmacologie : Acides sulfuriques.
- Biomasse, Fractionnement chimique, Masse moléculaire, Spectroscopie par résonance magnétique, Triploïdie.
English descriptors
- KwdEn :
- Aldehydes (analysis), Biomass (MeSH), Biotechnology (methods), Cell Wall (chemistry), Cell Wall (drug effects), Chemical Fractionation (MeSH), Hydroxybenzoates (analysis), Lignin (chemistry), Magnetic Resonance Spectroscopy (MeSH), Molecular Weight (MeSH), Phenols (analysis), Polysaccharides (chemistry), Populus (drug effects), Sulfuric Acids (pharmacology), Triploidy (MeSH).
- MESH :
- chemical , analysis : Aldehydes, Hydroxybenzoates, Phenols.
- chemistry : Cell Wall, Lignin, Polysaccharides.
- drug effects : Cell Wall, Populus.
- methods : Biotechnology.
- chemical , pharmacology : Sulfuric Acids.
- Biomass, Chemical Fractionation, Magnetic Resonance Spectroscopy, Molecular Weight, Triploidy.
Abstract
In order to understand the behaviors of hemicelluloses and lignin under the given acidic conditions with increasing severity, the structural characteristics were elucidated in detail by both wet chemistry methods and spectroscopic analyses in this study. Although acidic pretreatment significantly hydrolyzed the glycosidic linkages in xylan backbone and then reduced the molecular weight of xylan from 89,600 to 19,630 g/mol, a slightly increased amount of glucuronic acid was observed, probably attributing to the maintenance of ester bonds. The serious structural variation occurred in lignin macromolecule was evidenced by the extensive degradation of β-O-4 ether linkages and resinol substructure, together with the changes in the ratios of the three monolignols in ester-bond, ether-bond and non-condensed phenolic compounds. At the most severity, obvious condensation reactions introduced the clear shift of C(2) and C(5) correlations and the absence of C(6) correlation in guaiacyl units by 2D HSQC analysis.
DOI: 10.1016/j.biortech.2012.04.028
PubMed: 22609662
Affiliations:
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(analyse)</term><term>Biomasse (MeSH)</term><term>Biotechnologie (méthodes)</term><term>Fractionnement chimique (MeSH)</term><term>Hydroxybenzoates (analyse)</term><term>Lignine (composition chimique)</term><term>Masse moléculaire (MeSH)</term><term>Paroi cellulaire (composition chimique)</term><term>Paroi cellulaire (effets des médicaments et des substances chimiques)</term><term>Phénols (analyse)</term><term>Polyosides (composition chimique)</term><term>Populus (effets des médicaments et des substances chimiques)</term><term>Spectroscopie par résonance magnétique (MeSH)</term><term>Triploïdie (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Aldehydes</term><term>Hydroxybenzoates</term><term>Phenols</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Aldéhydes</term><term>Hydroxybenzoates</term><term>Phénols</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Cell Wall</term><term>Lignin</term><term>Polysaccharides</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Lignine</term><term>Paroi cellulaire</term><term>Polyosides</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Cell Wall</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Paroi cellulaire</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Biotechnology</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Biotechnologie</term></keywords><keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Acides sulfuriques</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Sulfuric Acids</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>Chemical Fractionation</term><term>Magnetic Resonance Spectroscopy</term><term>Molecular Weight</term><term>Triploidy</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Biomasse</term><term>Fractionnement chimique</term><term>Masse moléculaire</term><term>Spectroscopie par résonance magnétique</term><term>Triploïdie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In order to understand the behaviors of hemicelluloses and lignin under the given acidic conditions with increasing severity, the structural characteristics were elucidated in detail by both wet chemistry methods and spectroscopic analyses in this study. Although acidic pretreatment significantly hydrolyzed the glycosidic linkages in xylan backbone and then reduced the molecular weight of xylan from 89,600 to 19,630 g/mol, a slightly increased amount of glucuronic acid was observed, probably attributing to the maintenance of ester bonds. The serious structural variation occurred in lignin macromolecule was evidenced by the extensive degradation of β-O-4 ether linkages and resinol substructure, together with the changes in the ratios of the three monolignols in ester-bond, ether-bond and non-condensed phenolic compounds. At the most severity, obvious condensation reactions introduced the clear shift of C(2) and C(5) correlations and the absence of C(6) correlation in guaiacyl units by 2D HSQC analysis.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22609662</PMID><DateCompleted><Year>2012</Year><Month>10</Month><Day>05</Day></DateCompleted><DateRevised><Year>2018</Year><Month>08</Month><Day>16</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-2976</ISSN><JournalIssue CitedMedium="Internet"><Volume>116</Volume><PubDate><Year>2012</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Bioresource technology</Title><ISOAbbreviation>Bioresour Technol</ISOAbbreviation></Journal><ArticleTitle>Structural transformation of hemicelluloses and lignin from triploid poplar during acid-pretreatment based biorefinery process.</ArticleTitle><Pagination><MedlinePgn>99-106</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.biortech.2012.04.028</ELocationID><Abstract><AbstractText>In order to understand the behaviors of hemicelluloses and lignin under the given acidic conditions with increasing severity, the structural characteristics were elucidated in detail by both wet chemistry methods and spectroscopic analyses in this study. Although acidic pretreatment significantly hydrolyzed the glycosidic linkages in xylan backbone and then reduced the molecular weight of xylan from 89,600 to 19,630 g/mol, a slightly increased amount of glucuronic acid was observed, probably attributing to the maintenance of ester bonds. The serious structural variation occurred in lignin macromolecule was evidenced by the extensive degradation of β-O-4 ether linkages and resinol substructure, together with the changes in the ratios of the three monolignols in ester-bond, ether-bond and non-condensed phenolic compounds. At the most severity, obvious condensation reactions introduced the clear shift of C(2) and C(5) correlations and the absence of C(6) correlation in guaiacyl units by 2D HSQC analysis.</AbstractText><CopyrightInformation>Copyright © 2012 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Kun</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yang</LastName><ForeName>Haiyan</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Yao</LastName><ForeName>Xi</ForeName><Initials>X</Initials></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Feng</ForeName><Initials>F</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><ArticleDate 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Sun</name><name sortKey="Xu, Feng" sort="Xu, Feng" uniqKey="Xu F" first="Feng" last="Xu">Feng Xu</name><name sortKey="Yang, Haiyan" sort="Yang, Haiyan" uniqKey="Yang H" first="Haiyan" last="Yang">Haiyan Yang</name><name sortKey="Yao, Xi" sort="Yao, Xi" uniqKey="Yao X" first="Xi" last="Yao">Xi Yao</name></noCountry><country name="République populaire de Chine"><noRegion><name sortKey="Wang, Kun" sort="Wang, Kun" uniqKey="Wang K" first="Kun" last="Wang">Kun Wang</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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