用微波萃取法提取茶叶中茶多酚的工艺研究
宋建红，汪建华( 武汉化工学院等离子体化学与新材料重点实验室，湖北 武汉 430074)
摘要：以乙酸乙酯作为溶剂对茶叶进行微波萃取, 通过比较不同萃取工艺的优缺点，对提取出的茶多酚采用标准曲线法进行测定，结果表明，用此法对茶多酚的萃取率较高，且省时，效率高。通过进一步的放大性实验，可以验证此方法在工业化提取茶多酚的应用方面很有前景。
关键词：微波萃取；茶多酚；标准曲线法
Study on conditions of extracting tea polyphenols from tea through microwave extraction
Song Jianhong, Wang Jianhua
( Key Laboratory of Plasma Chemistry & Advanced Materials of Wuhan Institute of Chemical Technology, Wuhan 430073, China)
Abstract: Solvent of ethyl acetate extracted teapolyphenols from tea. After comparing deferent conditions of experiment and analyzing results, a conclusion can be come to: extraction rate of teapolyphenols is higher, and time needed is short. According to the enlarged experiments, the means of extracting TP with microwave-assisted extraction is greatly promising in the application of industry.
Key words: microwave extraction; teapolyphenols; Genus Pyrrosia
0 前言
茶多酚又名茶单宁、茶鞣质，是茶叶中所含的一类多羟基酚类化合物的总称，简称为TP(Teapolyphonel) [7].其主要成分为儿茶素类(黄烷醇类)、黄酮、黄酮醇类、花青素类、酚酸、缩酚酸类及聚合酚类等.其中儿茶素类化合物为茶多酚的主体成分 ......
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