食品科学 ›› 2011, Vol. 32 ›› Issue (7 ): 47-51.doi: 10.7506/spkx1002-6630-201107011

• 基础研究 • 上一篇    下一篇

20种市售凉茶类植物饮料抗氧化性的比较研究

何秋彤,余以刚*,李聪聪,李经桐,吴 晖   

  1. 华南理工大学轻工与食品学院
  • 收稿日期:2010-06-12 修回日期:2011-02-16 出版日期:2011-04-15 发布日期:2011-03-30
  • 通讯作者: 余以刚 E-mail:yuyigang@scut.edu.cn
  • 基金资助:
    2009 年度广东省自然科学基金项目(9151064101000070);2010 年广东省大学生创新实验项目(S1010561066)

Comparison of Antioxidant Activities of Twenty Kinds of Commercial Herbal Tea

HE Qiu-tong,YU Yi-gang*,LI Cong-cong,LI Jing-tong,WU Hui   

  1. College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
  • Received:2010-06-12 Revised:2011-02-16 Online:2011-04-15 Published:2011-03-30
  • Contact: YU Yi-gang E-mail:yuyigang@scut.edu.cn

摘要: 利用DPPH自由基清除实验、ORAC法和Fe3+还原能力实验,考察20种市售凉茶类植物饮料的抗氧化性。结果表明:20种凉茶在不同的抗氧化评价体系中均表现出不同程度的抗氧化能力。运用模糊评价理论建立的抗氧化综合评价模型表明,抗氧化综合评价值最高的5种凉茶类植物饮料皆为传统凉茶铺出售的凉茶。各凉茶试样的抗氧化综合评价值与总酚含量有一定的相关性,但线性关系不显著。

关键词: 抗氧化性, 凉茶, 总酚含量, 黄酮含量, 模糊综合评价

Abstract: Twenty kinds of herbal tea purchased from the local market were assessed for their antioxidant activities including DPPH radical scavenging activity, oxygen radical absorbance capacity (ORAC) and Fe3+ reducing power. Results indicated that all 20 kinds of herbal tea had antioxidant capacities in different antioxidant evaluation systems. In addition, a fuzzy comprehensive evaluation model was established to evaluate their comprehensive antioxidant capacity and five kinds of herbal tea with the highest comprehensive antioxidant capacity were all from two locally famous traditional herbal tea shops. A non-linear correlation between total phenol content and comprehensive antioxidant capacity of twenty kinds of herbal tea was achieved.

Key words: antioxidant activity, herbal tea, total phenol content, content, fuzzy comprehensive evaluation

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