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논문 기본 정보

자료유형
학술저널
저자정보
Hirose, Yuko (Department of Chemistry, Faculty of Education and Human Sciences, Yamanashi University) Kakita, Mitsuko (Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University) Washizu, Toshiyuki (Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University) Matsugo, Seiichi (Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University)
저널정보
한국광과학회 Journal of photoscience : an international journal officail organ of the korean society of photoscience Journal of photoscience : an international journal officail organ of the korean society of photoscience 제9권 제2호
발행연도
2002.1
수록면
424 - 426 (3page)

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Recently, much attention has been paid to the physiological functions of flavonoids associated with their antioxidant properties. However, there was a lack of information on the molecular mechanism at which flavonoids play the antioxidative role. We have already studied on the oxidation of quercetin with hydrogen peroxide and sodium hypochlorite in alcoholic aqueous solution and determined the oxidation products. Through the structural analysis of the oxidation products, it was clarified that the hydroxyl group at C-3 in the C ring plays the important role in the antioxidative action of quercetin. Successively, rutin and (+)-catechin were oxidized with sodium hypochlorite and their mono- and di-chlorinated derivatives were obtained. These facts indicate that these flavonoids can directly scavenge hypochlorous acid and the active site in this scavenging reaction is not the hydroxyl group at C-3.

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