OXIDATION OF PYROGALLOL TO PURPUROGALLIN BY CRYSTALLINE CATALASE
نویسندگان
چکیده
منابع مشابه
Oxidation of pyrogallol to purpurogallin by crystallin catalase.
It has been recently reported that catalytic quantities of crystalline catalase, in the presence of hydrogen peroxide, can rapidly oxidize a variety of molecules larger than hydrogen peroxide and aliphatic alcohols (1). The qualitative experiments have shown that oc-naphthol and p-phenylenediamine are condensed by oxidative coupling to indophenol purple; p-aminobenzoic acid, sulfathiazole, adre...
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The aim of this study was to investigate the oxido-reductive reactions of human hemoglobin with pyrogallol and the metabolism of pyrogallol by the protein, which contains a protoporphyrin IX like cytochrome P-450. Pyrogallol, having three hydroxy groups at the adjacent positions in the benzene ring, oxidized human oxyhemoglobin to methemoglobin and reduced human methemoglobin to oxyhemoglobin. ...
متن کاملThe Molecular Weight of Crystalline Catalase.
In 1933 Stern (2) used the diffusion method of Northrop and Anson (3) to determine the molecular weights of purified catalase from horse liver, pig liver, cow liver, horse kidney, and cow erythrocytes. He found the average value for the molecular weight of catalase to be 68,900, and stated that the catalase molecule has a dimension similar to that of hemoglobin. In 1938 Stern and Wyckoff (4) pu...
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A kinetic spectrophotometric method for rapid measurement of thiocyanate in serum, urine and sewage water with no need for removed of interfering substances in described. The method is based on the inhibitory effect of thiocyanate on the oxidation of pyrogallol red by bromated and nitrite which is monitored at 467 nm. The variables affecting the rate of the reaction were investigated and th...
متن کاملStereospecificity of the oxidation of ethanol by catalase.
The primary action of catalase, the ability to decompose hydrogen peroxide with the evolution of osygen, was originally described by Thbnoud in 1911 (1). Keilin and Hartrcc (2) later showed that catalase was also capable of oxidizing a wide variety of compounds including ethanol in the presence of a hydrogen peroxide-generating system. The present study was undertaken to determine the stereospe...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1953
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)77264-0