Supercritical carbon dioxide biocatalysis as a novel and green methodology for the enzymatic acylation of fibrous cellulose in one step

Gremos, S; Kekos, D; Kolisis, F

dc.contributor.author	Gremos, S	en
dc.contributor.author	Kekos, D	en
dc.contributor.author	Kolisis, F	en
dc.date.accessioned	2014-03-01T02:14:45Z
dc.date.available	2014-03-01T02:14:45Z
dc.date.issued	2012	en
dc.identifier.issn	09608524	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30097
dc.subject	Cellulose ester	en
dc.subject	Enzymatic acylation	en
dc.subject	Fibrous cellulose	en
dc.subject	Supercritical carbon dioxide	en
dc.subject	Thermoplastic biopolymers	en
dc.subject.other	Aliphatic esters	en
dc.subject.other	Aliphatic groups	en
dc.subject.other	Biocatalysis	en
dc.subject.other	Candida antarctica	en
dc.subject.other	Cellulose esters	en
dc.subject.other	Cutinase	en
dc.subject.other	Enzymatic acylation	en
dc.subject.other	Fibrous cellulose	en
dc.subject.other	Fusarium solani	en
dc.subject.other	Immobilized lipase	en
dc.subject.other	Laurate	en
dc.subject.other	Long chains	en
dc.subject.other	One step	en
dc.subject.other	Pre-Treatment	en
dc.subject.other	Supercritical carbon dioxides	en
dc.subject.other	Acylation	en
dc.subject.other	Biocatalysts	en
dc.subject.other	Biomolecules	en
dc.subject.other	Biopolymers	en
dc.subject.other	Carbon dioxide	en
dc.subject.other	Enzymes	en
dc.subject.other	Esterification	en
dc.subject.other	Esters	en
dc.subject.other	Supercritical fluid extraction	en
dc.subject.other	Cellulose	en
dc.subject.other	carbon dioxide	en
dc.subject.other	cellulose	en
dc.subject.other	cutinase	en
dc.subject.other	ester derivative	en
dc.subject.other	esterase	en
dc.subject.other	fibrous cellulose	en
dc.subject.other	lauric acid derivative	en
dc.subject.other	lauric acid vinyl ester	en
dc.subject.other	long chain fatty acid	en
dc.subject.other	supercritical carbon dioxide	en
dc.subject.other	triacylglycerol lipase	en
dc.subject.other	unclassified drug	en
dc.subject.other	biotechnology	en
dc.subject.other	carbon dioxide	en
dc.subject.other	catalysis	en
dc.subject.other	cellulose	en
dc.subject.other	enzyme activity	en
dc.subject.other	ester	en
dc.subject.other	fungus	en
dc.subject.other	immobilization	en
dc.subject.other	polymer	en
dc.subject.other	acylation	en
dc.subject.other	animal tissue	en
dc.subject.other	article	en
dc.subject.other	biocatalysis	en
dc.subject.other	Candida antarctica	en
dc.subject.other	enzymatic acylation	en
dc.subject.other	esterification	en
dc.subject.other	Fusarium solani	en
dc.subject.other	green chemistry	en
dc.subject.other	liver	en
dc.subject.other	nonhuman	en
dc.subject.other	priority journal	en
dc.subject.other	reaction time	en
dc.subject.other	swine	en
dc.subject.other	Candida antarctica	en
dc.subject.other	Fusarium solani	en
dc.title	Supercritical carbon dioxide biocatalysis as a novel and green methodology for the enzymatic acylation of fibrous cellulose in one step	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.biortech.2011.09.056	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.biortech.2011.09.056	en
heal.publicationDate	2012	en
heal.abstract	Aliphatic esters of cellulose have recently raised the interest on the field of biopolymers. The objective of this work is to develop a methodology for the enzymatic acylation of cellulose with long chain fatty groups in one step. Therefore we designed a system at which fibrous cellulose was enzymatically acylated with vinyl laurate in supercritical carbon dioxide (scCO2) and as a result cellulose laurate was formed. The biocatalysts used for this reaction were immobilized lipase Candida antarctica, immobilized esterase from hog liver and the immobilized cutinase Fusarium solani. The ester content of the product varied on the specificity of the biocatalyst used, reaching a maximum of 4.1% after 9h of reaction. In our knowledge, it is the first time where fibrous cellulose is enzymatically acylated by a long chain aliphatic group in one step, without the necessity of any pretreatment. © 2011 Elsevier Ltd.	en
heal.journalName	Bioresource Technology	en
dc.identifier.doi	10.1016/j.biortech.2011.09.056	en
dc.identifier.volume	115	en
dc.identifier.spage	96	en
dc.identifier.epage	101	en