SUPPORTED AQUEOUS-PHASE ENZYMATIC CATALYSIS IN ORGANIC MEDIA

被引:11
|
作者
PARIDA, S
DATTA, R
DORDICK, JS
机构
[1] UNIV IOWA,DEPT CHEM & BIOCHEM ENGN,IOWA CITY,IA 52242
[2] UNIV IOWA,CTR BIOCATALYSIS & BIOPROC,IOWA CITY,IA 52242
关键词
SUPPORTED LIQUID-PHASE CATALYSIS; ALCOHOL DEHYDROGENASE; ORGANIC MEDIA;
D O I
10.1007/BF02922179
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The use of partially hydrated porous silica particles has been studied as a support for cofactor-dependent enzymatic catalysis in organic solvents. At an optimal pore hydration corresponding to 70% pore volume, horse liver alcohol dehydrogenase catalyzes the oxidation and reduction of alcohols and aldehydes, respectively, with rates sixfold higher than with nonporous glass beads as the enzymatic support and with cofactor recycling numbers in excess of 10(5). Thus, supported aqueous-phase enzymatic catalysis makes highly effective use of the enzyme and cofactor by coimmobilization and by providing a high interfacial area for reactions in organic media.
引用
收藏
页码:1 / 14
页数:14
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