A new method for determination of apparent kinetics parameters in recirculating packed-bed immobilized enzyme reactors

被引:27
|
作者
Özdural, AR [1 ]
Tanyolaç, D
Demircan, Z
Boyaci, IH
Mutlu, M
Webb, C
机构
[1] Hacettepe Univ, Dept Chem Engn, TR-06532 Ankara, Turkey
[2] Hacettepe Univ, Dept Food Engn, TR-06532 Ankara, Turkey
[3] UMIST, Dept Chem Engn, Satake Ctr Grain Proc Engn, Manchester M60 1QD, Lancs, England
关键词
enzyme; kinetics; packed-bed; recirculation reactor; immobilized glucose oxidase; modelling;
D O I
10.1016/S0009-2509(01)00049-5
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this study, a simple and effective technique for characterizing Michaelis-Menten apparent kinetic parameters in packed-bed immobilized enzyme reactors is presented. The apparent kinetic parameters of immobilized glucose oxidase on weak base ion exchanger resin (Duolite A 568) were determined for different substrate flow rates in a recirculation system and compared with those for soluble glucose oxidase. It was observed that, for the experimental conditions, the immobilized enzyme K-m' values in a packed-bed reactor were less than the soluble enzyme K-m value and were flow dependent. The value of K-m' decreased with increasing flow rate. (C) 2001 Elsevier Science Ltd. AH rights reserved.
引用
收藏
页码:3483 / 3490
页数:8
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