Über die Reduktion der Katalase

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Abstract
It was not possible to reduce catalase with Na2S2O4, by H2 activated by catalysts, or by yeast. Catalase was prepared from horse liver under anaerobic conditions, but the product obtained was not very pure. The normal or oxidized form of catalase had an absorption band at 629 m[mu], while the reduced form did not show this band. When catalase was treated with H2S, the resulting compound reduced with Na2S2O4, and the H2S removed, catalase was regenerated by oxidation with air. Neither cysteine nor glutathione could take the place of H2S in this reaction, but washed liver slices could be used. These reactions might lead to a better understanding of the function of catalase in the living cell.

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