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V. V. Rogozhin, D. V. Peretolchin
Kinetics of individual and
combined oxidation of dihydroquercetin and potassium ferrocyanide catalyzed by
horseradish peroxidase
Abstract
The study-state kinetics of individual and cooxidation of
ferrocyanide and dihydroquercetin catalyzed by horsersdish peroxidase was
studieed. It is shown, that ferrocyanide and dihydroquercetin are slowly
oxidized substrata peroxidase. In an interval pH 4,5-8,0 sizes kcat and Km for these substrata
peroxidase are certain. In reactions of cooxidation substrata was revealed,
that at pH 4,5-7,0
dihydroquercetin accelerated oxidation ferrocyanide. At pHі7,5 oxidation only
dihydroquercetin was observed. Mechanisms of reactions of combined oxidation
ferrocyanide and dihydroquercetin are offered.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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