20种市售凉茶类植物饮料抗氧化性的比较研究  

Comparison of Antioxidant Activities of Twenty Kinds of Commercial Herbal Tea

作　　者：何秋彤[1] 余以刚[1] 李聪聪[1] 李经桐[1] 吴晖[1] 

机构地区：[1]华南理工大学轻工与食品学院,广东广州510640

出　　处：《食品科学》2011年第7期47-51,共5页Food Science

基　　金：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)

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

关 键 词：抗氧化性 凉茶 总酚含量 黄酮含量 模糊综合评价 

分 类 号：TS275.2[轻工技术与工程—农产品加工及贮藏工程]