High selective delignification using oxidative ionic liquid pretreatment at mild conditions for efficient enzymatic hydrolysis of lignocellulose.
Identifieur interne : 001812 ( Main/Corpus ); précédent : 001811; suivant : 001813High selective delignification using oxidative ionic liquid pretreatment at mild conditions for efficient enzymatic hydrolysis of lignocellulose.
Auteurs : Zhiqiang Pang ; Wenkang Lyu ; Cuihua Dong ; Hongxing Li ; Guihua YangSource :
- Bioresource technology [ 1873-2976 ] ; 2016.
English descriptors
- KwdEn :
- Biomass (MeSH), Biotechnology (methods), Carbohydrates (chemistry), Cellulases (chemistry), Cellulases (metabolism), Cellulose (chemistry), Crystallization (MeSH), Hydrolysis (MeSH), Ionic Liquids (chemistry), Lignin (chemistry), Lignin (isolation & purification), Oxidation-Reduction (MeSH), Populus (chemistry), beta-Glucosidase (chemistry), beta-Glucosidase (metabolism).
- MESH :
- chemical , chemistry : Carbohydrates, Cellulases, Cellulose, Ionic Liquids, Lignin, beta-Glucosidase.
- chemical , isolation & purification : Lignin.
- chemical , metabolism : Cellulases, beta-Glucosidase.
- chemistry : Populus.
- methods : Biotechnology.
- Biomass, Crystallization, Hydrolysis, Oxidation-Reduction.
Abstract
Herein, the oxidative ionic liquid (IL) pretreatment for overcoming recalcitrance of lignocellulose with selective delignification was investigated, and the subsequent enzymatic hydrolysis was evaluated. IL pretreatment incorporating oxygen delignification could enhance lignin extraction with high selectivity at low carbohydrate loss. The dual-action of oxidative decomposition and dissolution by 1-butyl-3-methlimidazolium chloride (BmimCl) on biomass were synergistically acted, accounting for efficient recalcitrance removal. In addition, the mild oxidative IL treatment only slightly converted crystalline cellulose into amorphous structure, and the extensive extraction of the amorphous lignin and carbohydrate resulted to the expose of cellulose with high susceptibility. Correspondingly, the enzymatic hydrolysis of the pretreated lignocellulose was greatly enhanced. The oxidative IL treatment at mild conditions, collaborating BmimCl treatment with oxygen delignification is a promising and effective system for overcoming the robust structure of lignocellulose.
DOI: 10.1016/j.biortech.2016.04.095
PubMed: 27128194
Links to Exploration step
pubmed:27128194Le document en format XML
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<author><name sortKey="Yang, Guihua" sort="Yang, Guihua" uniqKey="Yang G" first="Guihua" last="Yang">Guihua Yang</name>
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<series><title level="j">Bioresource technology</title>
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<term>Cellulases (chemistry)</term>
<term>Cellulases (metabolism)</term>
<term>Cellulose (chemistry)</term>
<term>Crystallization (MeSH)</term>
<term>Hydrolysis (MeSH)</term>
<term>Ionic Liquids (chemistry)</term>
<term>Lignin (chemistry)</term>
<term>Lignin (isolation & purification)</term>
<term>Oxidation-Reduction (MeSH)</term>
<term>Populus (chemistry)</term>
<term>beta-Glucosidase (chemistry)</term>
<term>beta-Glucosidase (metabolism)</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Carbohydrates</term>
<term>Cellulases</term>
<term>Cellulose</term>
<term>Ionic Liquids</term>
<term>Lignin</term>
<term>beta-Glucosidase</term>
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<keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Lignin</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Cellulases</term>
<term>beta-Glucosidase</term>
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<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Populus</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Biotechnology</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Biomass</term>
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<front><div type="abstract" xml:lang="en">Herein, the oxidative ionic liquid (IL) pretreatment for overcoming recalcitrance of lignocellulose with selective delignification was investigated, and the subsequent enzymatic hydrolysis was evaluated. IL pretreatment incorporating oxygen delignification could enhance lignin extraction with high selectivity at low carbohydrate loss. The dual-action of oxidative decomposition and dissolution by 1-butyl-3-methlimidazolium chloride (BmimCl) on biomass were synergistically acted, accounting for efficient recalcitrance removal. In addition, the mild oxidative IL treatment only slightly converted crystalline cellulose into amorphous structure, and the extensive extraction of the amorphous lignin and carbohydrate resulted to the expose of cellulose with high susceptibility. Correspondingly, the enzymatic hydrolysis of the pretreated lignocellulose was greatly enhanced. The oxidative IL treatment at mild conditions, collaborating BmimCl treatment with oxygen delignification is a promising and effective system for overcoming the robust structure of lignocellulose. </div>
</front>
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<Abstract><AbstractText>Herein, the oxidative ionic liquid (IL) pretreatment for overcoming recalcitrance of lignocellulose with selective delignification was investigated, and the subsequent enzymatic hydrolysis was evaluated. IL pretreatment incorporating oxygen delignification could enhance lignin extraction with high selectivity at low carbohydrate loss. The dual-action of oxidative decomposition and dissolution by 1-butyl-3-methlimidazolium chloride (BmimCl) on biomass were synergistically acted, accounting for efficient recalcitrance removal. In addition, the mild oxidative IL treatment only slightly converted crystalline cellulose into amorphous structure, and the extensive extraction of the amorphous lignin and carbohydrate resulted to the expose of cellulose with high susceptibility. Correspondingly, the enzymatic hydrolysis of the pretreated lignocellulose was greatly enhanced. The oxidative IL treatment at mild conditions, collaborating BmimCl treatment with oxygen delignification is a promising and effective system for overcoming the robust structure of lignocellulose. </AbstractText>
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