Catalase has been immobilized in membranes prepared by photoinduced grafting onto microporous polymeric supports and its catalytic activity on hydrogen peroxide decomposition has been studied under ultrafiltration conditions by means of a recirculation apparatus. The membranes showed a very good catalytic performance and the enzyme reaction took place exclusively within the membrane structure. Initial reaction rates measured in the temperature range 5-35-degrees-C as a function of both substrate concentration and enzyme amount immobilized per unit membrane surface indicate that the mechanism of action of catalase is not altered after immobilization.

PHOTOSYNTHETIC MEMBRANES .21. IMMOBILIZATION OF CATALASE BY PHOTOCHEMICALLY GRAFTED ULTRAFILTRATION MEMBRANES / E. SELLI, I. BELLOBONO, M. RAIMONDI. - In: DIE ANGEWANDTE MAKROMOLEKULARE CHEMIE. - ISSN 0003-3146. - 196(1992), pp. 169-177.

PHOTOSYNTHETIC MEMBRANES .21. IMMOBILIZATION OF CATALASE BY PHOTOCHEMICALLY GRAFTED ULTRAFILTRATION MEMBRANES

E. SELLI;I. BELLOBONO;
1992

Abstract

Catalase has been immobilized in membranes prepared by photoinduced grafting onto microporous polymeric supports and its catalytic activity on hydrogen peroxide decomposition has been studied under ultrafiltration conditions by means of a recirculation apparatus. The membranes showed a very good catalytic performance and the enzyme reaction took place exclusively within the membrane structure. Initial reaction rates measured in the temperature range 5-35-degrees-C as a function of both substrate concentration and enzyme amount immobilized per unit membrane surface indicate that the mechanism of action of catalase is not altered after immobilization.
Settore CHIM/02 - Chimica Fisica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/191048
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