| EGCG EGCG4″Me和EGCG3″Me清除DPPH自由基的研究 |
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| 引用本文： | 李银花,李娟,王英姿,刘仲华.EGCG EGCG4″Me和EGCG3″Me清除DPPH自由基的研究[J].农产品加工．学刊,2012(3):26-28. |
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| 作者姓名： | 李银花 李娟 王英姿 刘仲华 |
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| 作者单位： | 国家植物功能成分利用工程技术研究中心湖南农业大学茶学教育部重点实验室 |
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| 基金项目： | 国家自然科学基金(31100501);湖南农业大学青年基金(11QN10) |
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| 摘 要： | 采用DPPH自由基检测法测定了EGCG,EGCG4″Me和EGCG3″Me清除自由基的活性。在反应时间44 min和波长517 nm下测定了EGCG,EGCG4″Me和EGCG3″Me清除DPPH自由基的EC50值。结果表明,三者都具有明显的清除作用,其EC50值分别为1.208,2.499,1.632 mg/L。
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| 关 键 词： | EGCG EGCG3″Me EGCG4″Me 二苯代苦味肼基自由基 抗氧化剂 |
DPPH Radical Scavenging Capacity by EGCG,EGCG4″Me and EGCG3″Me |
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| LI Yin-hua,LI Juan,WANG Ying-zi, LIU Zhong-hua.DPPH Radical Scavenging Capacity by EGCG,EGCG4″Me and EGCG3″Me[J].Nongchanpin Jlagong.Xuekan,2012(3):26-28. |
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| Authors: | LI Yin-hua LI Juan WANG Ying-zi LIU Zhong-hua |
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| Institution: | (National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals,Key Laboratory of Tea Science,Ministry of Education,Hu’nan Agricultural University,Changsha,Hu’nan 410128,China) |
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| Abstract: | The radical scavenging capacity is determined by using DPPH radical scavenging method.EC 50 values of EGCG, EGCG4″Me and EGCG3″Me on DPPH radical scavenging are determined under the reaction time of 44 min and wavelength of 517 nm.The results show they have significant effects on DPPH radical scavenging.EC 50 values of EGCG,EGCG4″Me and EGCG3″Me are 1.208,2.499,1.632 mg/L,respectivity. |
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| Keywords: | EGCG EGCG3″Me EGCG4″Me 2 2-diphenyl-1-picrylhdrazyl radical antioxidant |
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