Coupling enzymatic reaction with chemisorption for the selective removal of substituted phenolic isomers

被引：7

作者：

Lenhart, JL ^{[1
]}

Sun, WQ ^{[1
]}

Payne, GF ^{[1
]}

机构：

[1] UNIV MARYLAND,CTR AGR BIOTECHNOL,BALTIMORE,MD 21227

来源：

CHEMICAL ENGINEERING SCIENCE | 1997年 / 52卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2509(96)00436-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The recognition capabilities of enzymes were combined with chemisorption for the selective and efficient removal of phenolic impurities from solutions. Specifically, enzyme tyrosinase was used to selectively oxidize phenols into o-quinones. The ortho/meta/para selectivity of tyrosinase and the possibility of regio-selectively removing undesired isomers from mixtures of substituted phenols using tyrosinase and chitosan were investigated. For rapid reactions, oxygen reactant loss was monitored with a dissolved oxygen electrode. For slower reactions, phenolic reactant loss was monitored by high performance liquid chromatography. Ultraviolet-visible spectrophotometry was used to estimate the amount of quinone and phenol oligomers appearing in the solution.

引用

页码：645 / 648

页数：4

共 11 条

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