An advanced understanding of the specific effects of xylan and surface lignin contents on enzymatic hydrolysis of lignocellulosic biomass.
Identifieur interne : 002802 ( Main/Exploration ); précédent : 002801; suivant : 002803An advanced understanding of the specific effects of xylan and surface lignin contents on enzymatic hydrolysis of lignocellulosic biomass.
Auteurs : Xiaohui Ju [États-Unis] ; Mark Engelhard ; Xiao ZhangSource :
- Bioresource technology [ 1873-2976 ] ; 2013.
Descripteurs français
- KwdFr :
- Adsorption (MeSH), Biomasse (MeSH), Biotechnologie (méthodes), Cinétique (MeSH), Enzymes (métabolisme), Glucides (biosynthèse), Hydrolyse (MeSH), Lignine (analyse), Lignine (composition chimique), Lignine (métabolisme), Populus (composition chimique), Spectroscopie photoélectronique (méthodes), Xylanes (composition chimique), Xylanes (métabolisme).
- MESH :
- analyse : Lignine.
- biosynthèse : Glucides.
- composition chimique : Lignine, Populus, Xylanes.
- métabolisme : Enzymes, Lignine, Xylanes.
- méthodes : Biotechnologie, Spectroscopie photoélectronique.
- Adsorption, Biomasse, Cinétique, Hydrolyse.
English descriptors
- KwdEn :
- Adsorption (MeSH), Biomass (MeSH), Biotechnology (methods), Carbohydrates (biosynthesis), Enzymes (metabolism), Hydrolysis (MeSH), Kinetics (MeSH), Lignin (analysis), Lignin (chemistry), Lignin (metabolism), Photoelectron Spectroscopy (methods), Populus (chemistry), Xylans (chemistry), Xylans (metabolism).
- MESH :
- chemical , analysis : Lignin.
- chemical , biosynthesis : Carbohydrates.
- chemical , chemistry : Lignin, Xylans.
- chemical , metabolism : Enzymes, Lignin, Xylans.
- chemistry : Populus.
- methods : Biotechnology, Photoelectron Spectroscopy.
- Adsorption, Biomass, Hydrolysis, Kinetics.
Abstract
In this study, chemical pulping techniques were applied to create a set of biomass substrates with intact lignocellulosic fibers and controlled morphological and chemical properties to allow the investigation of the individual effects of xylan and surface lignin content on enzymatic hydrolysis. A high resolution X-ray photoelectron spectroscopy technique was established for quantifying surface lignin content on lignocellulosic biomass substrates. The results from this study show that, apart from its hindrance effect, xylan can facilitate cellulose fibril swelling and thus create more accessible surface area, which improves enzyme and substrate interactions. Surface lignin has a direct impact on enzyme adsorption kinetics and hydrolysis rate. Advanced understanding of xylan and surface lignin effects provides critical information for developing more effective biomass conversion process.
DOI: 10.1016/j.biortech.2013.01.049
PubMed: 23395766
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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(métabolisme)</term><term>Populus (composition chimique)</term><term>Spectroscopie photoélectronique (méthodes)</term><term>Xylanes (composition chimique)</term><term>Xylanes (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Lignin</term></keywords><keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Carbohydrates</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Lignin</term><term>Xylans</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Enzymes</term><term>Lignin</term><term>Xylans</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Lignine</term></keywords><keywords scheme="MESH" qualifier="biosynthèse" xml:lang="fr"><term>Glucides</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" 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fibers and controlled morphological and chemical properties to allow the investigation of the individual effects of xylan and surface lignin content on enzymatic hydrolysis. A high resolution X-ray photoelectron spectroscopy technique was established for quantifying surface lignin content on lignocellulosic biomass substrates. The results from this study show that, apart from its hindrance effect, xylan can facilitate cellulose fibril swelling and thus create more accessible surface area, which improves enzyme and substrate interactions. Surface lignin has a direct impact on enzyme adsorption kinetics and hydrolysis rate. Advanced understanding of xylan and surface lignin effects provides critical information for developing more effective biomass conversion process.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23395766</PMID><DateCompleted><Year>2013</Year><Month>08</Month><Day>22</Day></DateCompleted><DateRevised><Year>2013</Year><Month>03</Month><Day>07</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-2976</ISSN><JournalIssue CitedMedium="Internet"><Volume>132</Volume><PubDate><Year>2013</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Bioresource technology</Title><ISOAbbreviation>Bioresour Technol</ISOAbbreviation></Journal><ArticleTitle>An advanced understanding of the specific effects of xylan and surface lignin contents on enzymatic hydrolysis of lignocellulosic biomass.</ArticleTitle><Pagination><MedlinePgn>137-45</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.biortech.2013.01.049</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0960-8524(13)00072-2</ELocationID><Abstract><AbstractText>In this study, chemical pulping techniques were applied to create a set of biomass substrates with intact lignocellulosic fibers and controlled morphological and chemical properties to allow the investigation of the individual effects of xylan and surface lignin content on enzymatic hydrolysis. A high resolution X-ray photoelectron spectroscopy technique was established for quantifying surface lignin content on lignocellulosic biomass substrates. The results from this study show that, apart from its hindrance effect, xylan can facilitate cellulose fibril swelling and thus create more accessible surface area, which improves enzyme and substrate interactions. Surface lignin has a direct impact on enzyme adsorption kinetics and hydrolysis rate. 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