正交试验法优化绿茶中茶多酚的提取工艺研究  

Studies on the Extract Technology of Tea Polyphenolsfrom Green Tea by Orthogonal Test Method

作　　者：许旋[1] 冼文彪[2] 罗一帆[2] 赵超艺[3] 苗爱青[3] 陈兆星[1] 李勤瑜[1] 

机构地区：[1]华南师范大学化学系,广东广州510631 [2]中山大学中山医学院天然药物研究室,广东广州510089 [3]广东省农业科学院茶叶研究所,广东广州510640

出　　处：《特产研究》2005年第2期30-33,共4页Special Wild Economic Animal and Plant Research

基　　金：广东省科技计划项目(2003C20405)

摘　　要：采用正交试验法优选出了绿茶中茶多酚提取产率的最佳工艺条件为:①95%乙醇提取1.5h,用等量氯仿萃取2次,最后再用等量乙酸乙酯萃取1次。②要得到茶多酚含量高的最佳提取工艺条件应为:95%乙醇提取1.0h,用等量氯仿萃取3次,最后再用等量乙酸乙酯萃取3次。这些结果,为改善茶多酚的提取方法提供了实验基础。The extraction of tea polyphenols was investigated with orthogonal test method. The results show that the optimum conditions for extracting tea polyphenols from green tea are as follows: (1) For productivity of tea polyphenols, extraction solvent is 95% alcohol solution, extraction time is 1.5 hours, extraction number with chloroform is 2 and extraction number with CH_3COOC_2H_5 is 1.(2) For content of tea polyphenols, extraction solvent is 95% alcohol solution,extraction time is 1.0 hours, extraction number with chloroform is 3 and extraction number with CH_3COOC_2H_5 is 3.The results has supplied with experimental basis for improving extiaction method of tea polyphenols.

关 键 词：茶多酚 提取 正交试验法 

分 类 号：S571.1[农业科学—茶叶生产加工]