DEGRADATION OF PESTICIDES IN A CONTINUOUS-FLOW 2-PHASE MICROEMULSION REACTOR

被引:10
作者
KOMIVES, C
OSBORNE, D
RUSSELL, AJ
机构
[1] UNIV PITTSBURGH,DEPT CHEM & PETR ENGN,PITTSBURGH,PA 15261
[2] UNIV PITTSBURGH,CTR BIOTECHNOL,PITTSBURGH,PA 15261
关键词
D O I
10.1021/bp00027a016
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
Biocatalytic processes in reversed micelles are limited by the need for continuous reactors in which reaction and separation are feasible. In this paper, we report the design and testing of a continuous-flow centrifugal bioreactor for the enzyme-catalyzed hydrolysis of the common pesticide paraoxon in reverse micelles of Tween 85. In this system, organophosphorus hydrolase catalyzes hydrolysis of the pesticide in an organic-organic two-phase system. The enzyme is retained in one of the phases by encapsulation in reversed micelles, while the other phase is under a continuous flow. This liquid-liquid plug-flow reactor does not leach enzyme because the enzyme is not soluble in the flowing organic phase that contains the paraoxon.
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页码:340 / 343
页数:4
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