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Zur Kinetik der Peroxydspaltung durch Katalase
Author(s) -
Gressly R.,
Erlenmeyer H.,
Aebi H.
Publication year - 1959
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19590420117
Subject(s) - chemistry , catalase , substrate (aquarium) , urea , nuclear chemistry , medicinal chemistry , enzyme , biochemistry , oceanography , geology
1 A comparative study on catalase activity, as measured by FEINSTEIW'S proce‐dure, in presence of different substrates and at various temperatures has been made. 2 Catalase activity is reduced when H 2 O 2 is replaced by perborate, urea‐H 2 O 2 or picolinic acid‐H 2 O 2 as a substrate. This is due to the inhibiting action of the peroxyde‐carriers, which has been found smallest for borate. 3 The effect of temperature on catalase activity is small in presence of perborate (Q 10 = 1.07−1.12), but can be affected by inhibitors in various ways, highest de‐pendency resulting in presence of Na‐Azide (Q 10 = 2.4). Therefore, activity measure‐ments in crude material at 37° and 0° are differently influenced by effectors present in the system.