| 原花青素体外清除自由基活性的研究 |
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| 引用本文： | 余莹,粟武,魏东芝.原花青素体外清除自由基活性的研究[J].华东理工大学学报(自然科学版),2002,28(3):318-320. |
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| 作者姓名： | 余莹 粟武 魏东芝 |
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| 作者单位： | 华东理工大学生物化学研究所,上海,200237 |
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| 摘 要： | 从葡萄籽中提取高纯度的原花青素 ,测得其对稳定自由基 1 ,1 -联苯 -β-苦基偕腙肼( DPPH)的半数抑制浓度 ( EC50 )为 44mg/L ;又利用 2 -脱氧 - D-核糖法产生· OH,在原花青素浓度为 1 0 g/L时可清除该体系中 80 %的· OH,表明原花青素是一种天然有效的自由基清除剂
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| 关 键 词： | 原花青素 自由基 活性 葡萄籽 DPPH 抗氧剂 植物药 |
| 文章编号： | 1006-3080(2002)03-0318-03 |
| 修稿时间： | 2001年7月23日 |
Scavenging Activity of Procyanidins on Free Radicals |
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| YU Ying,SU Wu,WEI Dong zhi.Scavenging Activity of Procyanidins on Free Radicals[J].Journal of East China University of Science and Technology,2002,28(3):318-320. |
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| Authors: | YU Ying SU Wu WEI Dong zhi |
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| Institution: | YU Ying,SU Wu,WEI Dong zhi * |
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| Abstract: | The purified procyanidins were obtained from grape seeds and its scavenging activity on DPPH and hydroxyl radicals was determined. The results showed that the 50% scavenging concentration ( EC 50 ) was 44mg/L in the DPPH and 80 percentage hydroxyl radicals was scavenged when the concentration was 10g/L. These results suggested that procyanidins would be a effective natural free radical scavenger. |
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| Keywords: | grape procyanidins free radical DPPH 2 deoxyribose antioxidant |
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