PoplarV1, Main, Exploration, bibRecord, 002764

Characterization of ionic liquid pretreated aspen wood using semi-quantitative methods for ethanol production.

Identifieur interne : 002764 ( Main/Exploration ); précédent : 002763; suivant : 002765

Characterization of ionic liquid pretreated aspen wood using semi-quantitative methods for ethanol production.

Auteurs : Amir Goshadrou [Canada] ; Keikhosro Karimi ; Mark Lefsrud

Source :

Carbohydrate polymers [ 1879-1344 ] ; 2013.

RBID : pubmed:23768585

Descripteurs français

KwdFr :
- Bois (composition chimique), Fermentation (MeSH), Hydrolyse (MeSH), Imidazoles (composition chimique), Lignine (composition chimique), Liquides ioniques (composition chimique), Populus (composition chimique), Éthanol (composition chimique).
MESH :
- composition chimique : Bois, Imidazoles, Lignine, Liquides ioniques, Populus, Éthanol.
- Fermentation, Hydrolyse.

English descriptors

KwdEn :
- Ethanol (chemistry), Fermentation (MeSH), Hydrolysis (MeSH), Imidazoles (chemistry), Ionic Liquids (chemistry), Lignin (chemistry), Populus (chemistry), Wood (chemistry).
MESH :
- chemical , chemistry : Ethanol, Imidazoles, Ionic Liquids, Lignin.
- chemistry : Populus, Wood.
- Fermentation, Hydrolysis.

Abstract

Aspen wood (Populus tremula) was pretreated with ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc) and dilute sulfuric acid for improvement of ethanol production. The ionic liquid pretreatment included wood dissolution at 120°C and 5% solid loading for 1, 3, and 5h followed by regeneration using water as an anti-solvent. More than 95% enzymatic digestibility was achieved for the ionic liquid treated wood, while the yield from the untreated wood was only 5.3%. Furthermore, over 81% of the maximum theoretical ethanol yield was attained after 24h fermentation of the ionic liquid treated wood, whereas the yields were only 5.3% and 42.1% for the untreated and dilute acid treated materials, respectively. A side-by-side comparative analysis of the pretreated materials using semi-quantitative techniques (e.g., Simons' staining and enzyme adsorption) revealed that the ionic liquid treatment was much more successful in increasing the cellulose accessibility to cellulases and decreasing the lignin content.

DOI: 10.1016/j.carbpol.2013.04.017
PubMed: 23768585

Affiliations:

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Le document en format XML

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<author><name sortKey="Goshadrou, Amir" sort="Goshadrou, Amir" uniqKey="Goshadrou A" first="Amir" last="Goshadrou">Amir Goshadrou</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ethanol (chemistry)</term>
<term>Fermentation (MeSH)</term>
<term>Hydrolysis (MeSH)</term>
<term>Imidazoles (chemistry)</term>
<term>Ionic Liquids (chemistry)</term>
<term>Lignin (chemistry)</term>
<term>Populus (chemistry)</term>
<term>Wood (chemistry)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Bois (composition chimique)</term>
<term>Fermentation (MeSH)</term>
<term>Hydrolyse (MeSH)</term>
<term>Imidazoles (composition chimique)</term>
<term>Lignine (composition chimique)</term>
<term>Liquides ioniques (composition chimique)</term>
<term>Populus (composition chimique)</term>
<term>Éthanol (composition chimique)</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Ethanol</term>
<term>Imidazoles</term>
<term>Ionic Liquids</term>
<term>Lignin</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Populus</term>
<term>Wood</term>
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<term>Imidazoles</term>
<term>Lignine</term>
<term>Liquides ioniques</term>
<term>Populus</term>
<term>Éthanol</term>
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<keywords scheme="MESH" xml:lang="en"><term>Fermentation</term>
<term>Hydrolysis</term>
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<term>Hydrolyse</term>
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<front><div type="abstract" xml:lang="en">Aspen wood (Populus tremula) was pretreated with ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc) and dilute sulfuric acid for improvement of ethanol production. The ionic liquid pretreatment included wood dissolution at 120°C and 5% solid loading for 1, 3, and 5h followed by regeneration using water as an anti-solvent. More than 95% enzymatic digestibility was achieved for the ionic liquid treated wood, while the yield from the untreated wood was only 5.3%. Furthermore, over 81% of the maximum theoretical ethanol yield was attained after 24h fermentation of the ionic liquid treated wood, whereas the yields were only 5.3% and 42.1% for the untreated and dilute acid treated materials, respectively. A side-by-side comparative analysis of the pretreated materials using semi-quantitative techniques (e.g., Simons' staining and enzyme adsorption) revealed that the ionic liquid treatment was much more successful in increasing the cellulose accessibility to cellulases and decreasing the lignin content.</div>
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<Title>Carbohydrate polymers</Title>
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<ArticleTitle>Characterization of ionic liquid pretreated aspen wood using semi-quantitative methods for ethanol production.</ArticleTitle>
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<Abstract><AbstractText>Aspen wood (Populus tremula) was pretreated with ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc) and dilute sulfuric acid for improvement of ethanol production. The ionic liquid pretreatment included wood dissolution at 120°C and 5% solid loading for 1, 3, and 5h followed by regeneration using water as an anti-solvent. More than 95% enzymatic digestibility was achieved for the ionic liquid treated wood, while the yield from the untreated wood was only 5.3%. Furthermore, over 81% of the maximum theoretical ethanol yield was attained after 24h fermentation of the ionic liquid treated wood, whereas the yields were only 5.3% and 42.1% for the untreated and dilute acid treated materials, respectively. A side-by-side comparative analysis of the pretreated materials using semi-quantitative techniques (e.g., Simons' staining and enzyme adsorption) revealed that the ionic liquid treatment was much more successful in increasing the cellulose accessibility to cellulases and decreasing the lignin content.</AbstractText>
<CopyrightInformation>Copyright © 2013 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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Characterization of ionic liquid pretreated aspen wood using semi-quantitative methods for ethanol production.

Characterization of ionic liquid pretreated aspen wood using semi-quantitative methods for ethanol production.

Source :

Descripteurs français

English descriptors

Abstract

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

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