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

Abstract

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.