Enzymatic acylation of cellulose acetate in organic media

被引：18

作者：

Sereti, V ^{[1
]}

Stamatis, H ^{[1
]}

Koukios, E ^{[1
]}

Kolisis, FN ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Dept Chem Engn, Biosyst Technol Lab, Div 4, Athens 15700, Greece

来源：

JOURNAL OF BIOTECHNOLOGY | 1998年 / 66卷 / 2-3期

关键词：

cellulose acetate; esterification; lipases;

D O I：

10.1016/S0168-1656(98)00085-6

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Cellulose fatty esters were prepared by acylation of cellulose acetate with various fatty acids catalyzed by immobilized lipase from Candida antarctica (Novozyme) in acetonitrile. The reaction parameters affecting the biocatalytic process such as the role of the nature of the substrates, the concentration of the enzyme and the reactants as well as the agitation speed of the reaction mixture have been investigated. At optimum reaction conditions about 35% of the initial amount of fatty acid were incorporated on the modified cellulose acetate molecule, while an increase of 2% of the ester bonds was observed on the final product. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：219 / 223

页数：5

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