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Direct enzymatic acylation of cellulose pretreated in BMIMCl ionic liquid

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dc.contributor.author Gremos, S en
dc.contributor.author Zarafeta, D en
dc.contributor.author Kekos, D en
dc.contributor.author Kolisis, F en
dc.date.accessioned 2014-03-01T01:35:31Z
dc.date.available 2014-03-01T01:35:31Z
dc.date.issued 2011 en
dc.identifier.issn 0960-8524 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/21095
dc.subject Cellulose en
dc.subject Cellulose ester en
dc.subject Enzymatic acylation en
dc.subject Ionic liquid en
dc.subject Solvent free reaction en
dc.subject.classification Agricultural Engineering en
dc.subject.classification Biotechnology & Applied Microbiology en
dc.subject.classification Energy & Fuels en
dc.subject.other Catalytic activity en
dc.subject.other Cellulose ester en
dc.subject.other Cellulose esters en
dc.subject.other Cutinase en
dc.subject.other Enzymatic acylation en
dc.subject.other Enzymatic esterification en
dc.subject.other Fusarium solani en
dc.subject.other Hydrolases en
dc.subject.other Laurate en
dc.subject.other Long chain fatty acid en
dc.subject.other Methylimidazolium chloride en
dc.subject.other Pre-Treatment en
dc.subject.other Solvent free reaction en
dc.subject.other Vinyl stearate en
dc.subject.other Acylation en
dc.subject.other Astatine en
dc.subject.other Biopolymers en
dc.subject.other Catalyst activity en
dc.subject.other Cellulose en
dc.subject.other Chemical industry en
dc.subject.other Chlorine compounds en
dc.subject.other Enzymes en
dc.subject.other Esterification en
dc.subject.other Esters en
dc.subject.other Fatty acids en
dc.subject.other Ionic liquids en
dc.subject.other Ions en
dc.subject.other Lipases en
dc.subject.other Solvents en
dc.subject.other Cellulosic resins en
dc.subject.other 1 n butyl 3 methylimidazolium chloride en
dc.subject.other cellulose en
dc.subject.other cutinase en
dc.subject.other enzyme en
dc.subject.other esterase en
dc.subject.other hydrolase en
dc.subject.other ionic liquid en
dc.subject.other lauric acid en
dc.subject.other lauric acid vinyl ester en
dc.subject.other microcrystalline cellulose en
dc.subject.other polysaccharide en
dc.subject.other propionic acid en
dc.subject.other solvent en
dc.subject.other stearic acid en
dc.subject.other triacylglycerol lipase en
dc.subject.other unclassified drug en
dc.subject.other vinyl derivative en
dc.subject.other vinyl propionate en
dc.subject.other vinyl stearate en
dc.subject.other catalysis en
dc.subject.other cellulose en
dc.subject.other chemical industry en
dc.subject.other enzyme activity en
dc.subject.other ester en
dc.subject.other fatty acid en
dc.subject.other fungus en
dc.subject.other immobilization en
dc.subject.other polymer en
dc.subject.other solvent en
dc.subject.other acylation en
dc.subject.other animal experiment en
dc.subject.other article en
dc.subject.other catalysis en
dc.subject.other chemical reaction en
dc.subject.other chemical structure en
dc.subject.other enzymatic acylation en
dc.subject.other enzyme activity en
dc.subject.other enzyme immobilization en
dc.subject.other enzyme substrate en
dc.subject.other enzyme synthesis en
dc.subject.other esterification en
dc.subject.other Fusarium solani en
dc.subject.other liver en
dc.subject.other molecule en
dc.subject.other nonhuman en
dc.subject.other priority journal en
dc.subject.other swine en
dc.subject.other Acylation en
dc.subject.other Animals en
dc.subject.other Biocatalysis en
dc.subject.other Carboxylic Ester Hydrolases en
dc.subject.other Cellulose en
dc.subject.other Enzymes en
dc.subject.other Esterases en
dc.subject.other Esters en
dc.subject.other Imidazoles en
dc.subject.other Ionic Liquids en
dc.subject.other Lipase en
dc.subject.other Swine en
dc.subject.other Fusarium solani en
dc.title Direct enzymatic acylation of cellulose pretreated in BMIMCl ionic liquid en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.biortech.2010.09.021 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.biortech.2010.09.021 en
heal.language English en
heal.publicationDate 2011 en
heal.abstract Cellulose esters are an important class of functional biopolymers with great interest in the chemical industry. In this work the enzymatic acylation of Avicel cellulose with vinyl propionate, vinyl laurate and vinyl stearate, has been performed successfully in a solvent free reaction system. At first cellulose was putted into the ionic liquid BMIMCl (1-n-butyl-3-methylimidazolium chloride) in order to facilitate the unwrap of the structure of the polysaccharide molecule and make it accessible to the enzyme. Thus, after this pretreatment the enzymatic esterification reaction was performed using various hydrolases. The enzymes capable of catalyzing the acylation of cellulose were found to be the immobilized esterase from hog liver and the immobilized cutinase from Fusarium solani, while the lipases used did not show any catalytic activity. Cellulose esters of propionate, laurate and stearate were synthesized with a degree of esterification of 1.9%, 1.3% and 1.0%, respectively. It is the first successful direct enzymatic acylation of cellulose with long chain fatty acids. (C) 2010 Elsevier Ltd. All rights reserved. en
heal.publisher ELSEVIER SCI LTD en
heal.journalName Bioresource Technology en
dc.identifier.doi 10.1016/j.biortech.2010.09.021 en
dc.identifier.isi ISI:000286782700129 en
dc.identifier.volume 102 en
dc.identifier.issue 2 en
dc.identifier.spage 1378 en
dc.identifier.epage 1382 en


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