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| 不同提取方法对红茶提取物抗氧化活性影响的研究 | |
| 引用本文： | 宋力,许春萱,段璞,王文华,张克立.不同提取方法对红茶提取物抗氧化活性影响的研究[J].化学研究与应用,2012,24(4):585-587. |
| 作者姓名： | 宋力 许春萱 段璞 王文华 张克立 |
| 作者单位： | 1. 信阳师范学院化学化工学院,河南信阳464000;武汉大学化学与分子科学学院,湖北武汉430072 2. 信阳师范学院化学化工学院,河南信阳,464000 3. 武汉大学化学与分子科学学院,湖北武汉,430072 |
| 摘 要： | 采取沸水浴法、回流法、微波法及超声波法探讨信阳红茶和印度红茶的抗氧化性,通过测定吸光度利用Fenton反应表征提取物对羟自由基的清除率.不同的提取方法对红茶抗氧化活性有一定的影响,羟自由基的清除率与红茶的抗氧化活性成正比.结果表明:信阳红茶沸水浴法提取率较高,印度红茶超声波法提取率较高. |
| 关 键 词： | 信阳红茶 印度红茶 抗氧化性 清除率 |
Effects of different extraction methods on antioxidant activity in black tea |
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| SONG Li , XU Chun-xuan , DUAN Pu , WANG Wen-hua , ZHANG Ke-li.Effects of different extraction methods on antioxidant activity in black tea[J].Chemical Research and Application,2012,24(4):585-587. | |
| Authors: | SONG Li XU Chun-xuan DUAN Pu WANG Wen-hua ZHANG Ke-li |
| Institution: | 1.Department of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 46400,China;2.College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072,China) |
| Abstract: | The antioxidant components of Xinyang black tea and Indian black tea were extracted by four kinds of extraction methods including boiling water bath method,reflux method,microwave method and ultrasonic method.The scavenging rate of hydroxyl radicals of extractions was tested by Fenton reaction.The different extraction methods affected the antioxidant activity of different black tea.The scavenging rate of hydroxyl radical is proportional to the antioxidant activity of black tea.Experimental results show that antioxidant activity of Xinyang black tea was the highest by using boiling water bath method,and antioxidant of India black tea was the highest by using ultrasonic method. |
| Keywords: | Xinyang black tea India black tea antioxidant activity scavenging rate |
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