PoplarV1, Main, Exploration, bibRecord, 002473

Synergistic benefits of ionic liquid and alkaline pretreatments of poplar wood. Part 2: characterization of lignin and hemicelluloses.

Identifieur interne : 002473 ( Main/Exploration ); précédent : 002472; suivant : 002474

Synergistic benefits of ionic liquid and alkaline pretreatments of poplar wood. Part 2: characterization of lignin and hemicelluloses.

Auteurs : Tong-Qi Yuan [République populaire de Chine] ; Ting-Ting You ; Wei Wang ; Feng Xu ; Run-Cang Sun

Source :

Bioresource technology [ 1873-2976 ] ; 2013.

RBID : pubmed:23567701

Descripteurs français

KwdFr :
- Acides uroniques (métabolisme), Alcalis (pharmacologie), Bois (effets des médicaments et des substances chimiques), Hydroxyde de sodium (pharmacologie), Lignine (métabolisme), Liquides ioniques (pharmacologie), Masse moléculaire (MeSH), Polyosides (métabolisme), Populus (effets des médicaments et des substances chimiques), Spectroscopie par résonance magnétique (MeSH).
MESH :
- effets des médicaments et des substances chimiques : Bois, Populus.
- métabolisme : Acides uroniques, Lignine, Polyosides.
- pharmacologie : Alcalis, Hydroxyde de sodium, Liquides ioniques.
- Masse moléculaire, Spectroscopie par résonance magnétique.

English descriptors

KwdEn :
- Alkalies (pharmacology), Ionic Liquids (pharmacology), Lignin (metabolism), Magnetic Resonance Spectroscopy (MeSH), Molecular Weight (MeSH), Polysaccharides (metabolism), Populus (drug effects), Sodium Hydroxide (pharmacology), Uronic Acids (metabolism), Wood (drug effects).
MESH :
- chemical , metabolism : Lignin, Polysaccharides, Uronic Acids.
- chemical , pharmacology : Alkalies, Ionic Liquids, Sodium Hydroxide.
- drug effects : Populus, Wood.
- Magnetic Resonance Spectroscopy, Molecular Weight.

Abstract

The effect of proposed integrated pretreatment on enzymatic hydrolysis of poplar wood has been reported in Part 1. Part 2 of this work investigated the detailed structural features of the isolated lignin and hemicellulosic fractions, which were obtained in high yields. The chemical structures of these polymer fractions obtained were compared with the corresponding alkaline lignin and hemicelluloses extracted from the raw material without ionic liquid (IL) pretreatment. The yields of alkaline lignin and hemicelluloses obviously increased after the IL pretreatment. No apparent degradation occurred for both lignin and hemicellulosic fractions during this integrated pretreatment process. The lignin fraction (RCEL), which obtained after the enzymatic hydrolysis, exhibited high percentages of β-O-4' aryl ether linkages and S/G ratio. It is believed that the high molecular weight and high purity hemicellulosic and lignin fractions obtained can serve as raw materials for the production of value-added products.

DOI: 10.1016/j.biortech.2013.03.042
PubMed: 23567701

Affiliations:

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Le document en format XML

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<affiliation wicri:level="1"><nlm:affiliation>Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
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<series><title level="j">Bioresource technology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alkalies (pharmacology)</term>
<term>Ionic Liquids (pharmacology)</term>
<term>Lignin (metabolism)</term>
<term>Magnetic Resonance Spectroscopy (MeSH)</term>
<term>Molecular Weight (MeSH)</term>
<term>Polysaccharides (metabolism)</term>
<term>Populus (drug effects)</term>
<term>Sodium Hydroxide (pharmacology)</term>
<term>Uronic Acids (metabolism)</term>
<term>Wood (drug effects)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Acides uroniques (métabolisme)</term>
<term>Alcalis (pharmacologie)</term>
<term>Bois (effets des médicaments et des substances chimiques)</term>
<term>Hydroxyde de sodium (pharmacologie)</term>
<term>Lignine (métabolisme)</term>
<term>Liquides ioniques (pharmacologie)</term>
<term>Masse moléculaire (MeSH)</term>
<term>Polyosides (métabolisme)</term>
<term>Populus (effets des médicaments et des substances chimiques)</term>
<term>Spectroscopie par résonance magnétique (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Lignin</term>
<term>Polysaccharides</term>
<term>Uronic Acids</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Alkalies</term>
<term>Ionic Liquids</term>
<term>Sodium Hydroxide</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Populus</term>
<term>Wood</term>
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<keywords scheme="MESH" qualifier="effets des médicaments et des substances chimiques" xml:lang="fr"><term>Bois</term>
<term>Populus</term>
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<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Acides uroniques</term>
<term>Lignine</term>
<term>Polyosides</term>
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<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Alcalis</term>
<term>Hydroxyde de sodium</term>
<term>Liquides ioniques</term>
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<keywords scheme="MESH" xml:lang="en"><term>Magnetic Resonance Spectroscopy</term>
<term>Molecular Weight</term>
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<front><div type="abstract" xml:lang="en">The effect of proposed integrated pretreatment on enzymatic hydrolysis of poplar wood has been reported in Part 1. Part 2 of this work investigated the detailed structural features of the isolated lignin and hemicellulosic fractions, which were obtained in high yields. The chemical structures of these polymer fractions obtained were compared with the corresponding alkaline lignin and hemicelluloses extracted from the raw material without ionic liquid (IL) pretreatment. The yields of alkaline lignin and hemicelluloses obviously increased after the IL pretreatment. No apparent degradation occurred for both lignin and hemicellulosic fractions during this integrated pretreatment process. The lignin fraction (RCEL), which obtained after the enzymatic hydrolysis, exhibited high percentages of β-O-4' aryl ether linkages and S/G ratio. It is believed that the high molecular weight and high purity hemicellulosic and lignin fractions obtained can serve as raw materials for the production of value-added products.</div>
</front>
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<Month>May</Month>
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<Title>Bioresource technology</Title>
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<Abstract><AbstractText>The effect of proposed integrated pretreatment on enzymatic hydrolysis of poplar wood has been reported in Part 1. Part 2 of this work investigated the detailed structural features of the isolated lignin and hemicellulosic fractions, which were obtained in high yields. The chemical structures of these polymer fractions obtained were compared with the corresponding alkaline lignin and hemicelluloses extracted from the raw material without ionic liquid (IL) pretreatment. The yields of alkaline lignin and hemicelluloses obviously increased after the IL pretreatment. No apparent degradation occurred for both lignin and hemicellulosic fractions during this integrated pretreatment process. The lignin fraction (RCEL), which obtained after the enzymatic hydrolysis, exhibited high percentages of β-O-4' aryl ether linkages and S/G ratio. It is believed that the high molecular weight and high purity hemicellulosic and lignin fractions obtained can serve as raw materials for the production of value-added products.</AbstractText>
<CopyrightInformation>Copyright © 2013 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Yuan</LastName>
<ForeName>Tong-Qi</ForeName>
<Initials>TQ</Initials>
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Synergistic benefits of ionic liquid and alkaline pretreatments of poplar wood. Part 2: characterization of lignin and hemicelluloses.

Synergistic benefits of ionic liquid and alkaline pretreatments of poplar wood. Part 2: characterization of lignin and hemicelluloses.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki