Enhanced formation of quercetin by combined use of gamma ray and H₂O₂ from cyanidin-3-O-xylosylrutinoside

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• 作者：Seung Sik Lee^a ; Eun Mi Lee^a ; Sung Hyun Hong^a ; Sang-Ho Yoo^b ; Jae-Young Cho^c ; In Chul Lee^d ; Byung Yeoup Chung^a ; ^{bychung@kaeri.re.kr}
• 关键词：Cyanidin-3-O-xylosylrutinoside ; Gamma ray ; Hydrogen peroxide ; Quercetin ; Schizandra chinensis Baillon
• 刊名：Radiation Physics and Chemistry
• 出版年：2012
• 期刊代码：68_0969806x
• 类别：ph
• 出版时间：August, 2012
• 卷：81
• 期：8
• 页码：1132-1135
• 文件大小：353 K

摘要

Cyanidin-3-O-xylosylrutinoside (cya-3-O-xylrut), a major pigment in Schizandra chinensis Baillon, was effectively removed by gamma irradiation of greater than 2 kGy, whereas quercetin, the most abundant of the flavonoids and has anti-inflammatory and anti-allergic effects, could be generated by degradation of cya-3-O-xylrut. In the present study, we investigated the effect of combination treatment of gamma irradiation and hydrogen peroxide (H₂O₂) on the formation of quercetin through the degradation of cya-3-O-xylrut. Cya-3-O-xylrut was significantly degraded (鈭?3%) by gamma irradiation at 2 kGy and it was completely removed by a combination treatment (0.2%H₂O₂ and 2 kGy gamma ray). The formation of quercetin was significantly appeared at 2 kGy of gamma ray, together with disappearance of cya-3-O-xylrut. The quercetin formation by gamma ray is 3.2 渭g/ml and combination treatment is 7.7 渭g/ml. Therefore, the combination treatment of H₂O₂ and gamma ray is more effective to convert cya-3-O-xylrut into quercetin than gamma irradiation only. In conclusion, gamma ray combined with H₂O₂ would be a promising tool for bio-conversion of organic compounds.