Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
ISSN-L : 0918-6158
Studies on the Aerobic Photooxidation of Cysteine Using Riboflavin as a Sensitizer : Evidence for the Photogeneration of a Superoxide Anion and Hydrogen Peroxide
Biswajit SARKARUtpal DASSubirnath BHATTACHARYYASwapan K. BOSE
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1997 Volume 20 Issue 8 Pages 910-912

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Abstract

The riboflavin sensitized oxidation of cysteine under an aerobic condition was investigated. The effects of various scavengers, such as superoxide dismutase, catalase, mannitol, sodium azide and potassium ferrocyanide (an electron donor), on the photooxidation were determined. A reaction mechanism involving the superoxide anion is proposed for the photooxidation of cysteine to cysteic acid.

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© The Pharmaceutical Society of Japan
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