| 荷叶水提物清除自由基的ESR研究 |
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| 引用本文： | 余以刚,陈海光,曾庆孝.荷叶水提物清除自由基的ESR研究[J].中草药,2001,32(8):693-695. |
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| 作者姓名： | 余以刚 陈海光 曾庆孝 |
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| 作者单位： | 华南理工大学食品与生物工程学院, |
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| 基金项目： | 本项目由广东省博士后基金资助 |
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| 摘 要： | 目的研究了荷叶水提物(LLE)对羟基自由基(·OH)和超氧阴离子自由基(O2)的清除效果.方法采用电子自旋共振法自旋捕集技术.结果26.95μg/mL的LLE对次黄嘌呤-黄嘌呤氧化酶体系产生O2的清除率达65.6%,LLE浓度大于8.98 mg/mL时可以全部清除由Fenten反应体系产生的·OH.结论LLE对·OH和O2有很强的清除能力.
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| 关 键 词： | 荷叶 自由基 ESR 水提物 |
| 文章编号： | 0253-2670(2001)08-0693-03 |
| 收稿时间： | 2000/11/20 0:00:00 |
| 修稿时间： | 2001年11月20 |
Action of lotus leaf extract in scavenging free radicals as studied by electronspin resonance |
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| YU Yigang,CHEN Haiguang and ZENG Qingxiao.Action of lotus leaf extract in scavenging free radicals as studied by electronspin resonance[J].Chinese Traditional and Herbal Drugs,2001,32(8):693-695. |
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| Authors: | YU Yigang CHEN Haiguang and ZENG Qingxiao |
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| Affiliation: | College of Food and Bio engineering, South China University of Technology, Guangzhou Guangdong 510641, China;College of Food and Bio engineering, South China University of Technology, Guangzhou Guangdong 510641, China;College of Food and Bio engineering, South China University of Technology, Guangzhou Guangdong 510641, China |
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| Abstract: | Object To study the action of lotus leaf extract(LLE) in scavengings hydroxyl and super-oxide anion radical. Methods By spintrapping with electronspin resonance. Results 26.94ug/mLLLE can scavenge 65.60% superoxideanion radical(O÷2) produced by Hypoxanthine-Xanthine oxidase system, while at concent rations over 8.98mg/mL a complete eradication of hydroxyl radical(°OH) produced from Fenten reaction system was achieved. Conclusion LLE is highly effective in scavenging °OH and O÷2 free radicals. |
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| Keywords: | lotus leaf free radical electronspin resonance (ESR) |
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