摘要
采用比色法测定了用四种不同极性的溶剂提取的苦荆茶 ( Ilex.sp)中多酚类物质的含量 ,发现四种溶剂提取多酚类物质的得率高低依次是 :丙酮水 ( 1 0 .1 0 % ) >水 ( 9.3 9% ) >60 %乙醇 ( 9.1 7% ) >95 %乙醇 ( 6.84% ) ;揭示了苦荆茶中多酚类物质与普通绿茶中茶多酚有相似的特性 ,易溶于丙酮水中 .同时 ,也阐明了苦荆茶可能具有抗氧化 。
We determine, by means of colorimetry, the content of polyphen o l substances in Kujingcha(Ilex. sp) distilled from four different polar-s olvents,and find out that the obtaining rates of polyphenol substances distille d from the four solvents are successively as follows: aqueous acetone(10.10%)> water(9.39%)>ethanol(60%)(9.17%)>ethanol(95%)(6.84%). This result reveals t he property of polyphenol substances in Kujingcha and ordinary green tea that is easily soluble in acetone liquid. Meanwhile,we illustrate the likely efficacy of anti-oxidation,anti-caducity and longevity of Kujingcha.
出处
《黄冈师范学院学报》
2003年第3期55-56,96,共3页
Journal of Huanggang Normal University
基金
湖北省教委高等学校科学研究自然科学重要项目(98A0 68)
湖北省科委重点科技发展指导性计划项目( 9 93 B10 )资助
