食品科学 ›› 2010, Vol. 31 ›› Issue (23): 22-26.doi: 10.7506/spkx1002-6630-201023006

• 基础研究 • 上一篇    下一篇

苦丁茶冬青与大叶冬青苦丁茶提取物体外抗氧化活性的比较研究

张文芹,许文清,孙 怡,叶 红,曾晓雄*   

  1. 南京农业大学食品科技学院
  • 收稿日期:2010-05-21 修回日期:2010-11-15 出版日期:2010-12-15 发布日期:2010-12-29
  • 通讯作者: 曾晓雄 E-mail:zengxx@njau.edu.cn
  • 基金资助:

    国家“863”计划项目(2007AA10Z351);南京农业大学高层次人才引进基金项目(804066)

Comparative Evaluation of Antioxidant Activity in vitro of Aqueous Extracts from Ilex kudingcha C.J. Tseng and Ilex latifolia Thunb Leaf Teas

ZHANG Wen-qin,XU Wen-qing,SUN Yi,YE Hong,ZENG Xiao-xiong*   

  1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2010-05-21 Revised:2010-11-15 Online:2010-12-15 Published:2010-12-29
  • Contact: ZENG Xiao-xiong E-mail:zengxx@njau.edu.cn

摘要:

比较苦丁茶冬青苦丁茶和大叶冬青苦丁茶提取液中多酚、黄酮的含量及体外抗氧化能力,结果表明:多酚含量高的苦丁茶冬青苦丁茶比黄酮含量高的大叶冬青苦丁茶具有较高的体外抗氧化能力;对5 种体外抗氧化活性评价方法之间的相关性进行分析,表明各抗氧化方法间相关性良好(R2 > 0.8478),尤以DPPH 自由基法与ABTS+·法的相关性最高(R2=0.9967)。

关键词: 苦丁茶冬青苦丁茶, 大叶冬青苦丁茶, 多酚, 黄酮, 抗氧化

Abstract:

The contents of polyphenols and flavonoids and the antioxidant activities in vitro of aqueous extracts from the leaf teas of Ilex latifolia Thunb and Ilex kudingcha C.J. Tseng were determined. It was found that the aqueous extract from Ilex kudingcha C.J. Tseng had both higher polyphenol content and in vitro antixodiant performance than that from Ilex latifolia Thunb. The correlation analysis among five antioxidant evaluation methods in vitro demonstrated that there was a good correlation among them (R2 >0.8478), and the correlation between DPPH and ABTS+ free radical scavenging assays was the most significant (R2 = 0.9967).

Key words: Ilex kudingcha C.J. Tseng leaf tea, Ilex latifolia Thunb leaf tea, polyphenol, flavonoid, antioxidant activit

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