Enzymatic and Electrochemical Reactions of Catalase Immobilized on Carbon Materials

Abstract

It has been shown that catalase immobilized on graphite and soot undergoes an oxida-tionreduction transformation. Some results on the effect of the potential sweep rate, temperature and pH on this transformation are presented. On the basis of the relationship estab-lished it has been proved that the redox transformation is related to the iron in the heme of the active center of the enzyme and takes place with a transfer of one electron. © 1995, Walter de Gruyter. All rights reserved.