秋季茶树修剪鲜叶中多酚类物质的提取工艺  

Extraction of Tea Polyphenols from Fresh Leaves of Autumn Tea Trees

作　　者：李少华 韩锦斌 陈荣冰 王飞权 冯花 郞岩 LI Shaohua;HAN Jinbin;CHEN Rongbing;WANG Feiquan;FENG Hua;LANG Yan(School of Tourism,Wuyi University,Wuyishan,Fujian 354300,China;School of Tea and Food Science,Wuyi University,Wuyishan,Fujian354300,China)

机构地区：[1]武夷学院旅游学院,福建武夷山354300 [2]武夷学院茶与食品学院,福建武夷山354300

出　　处：《武夷学院学报》2022年第3期6-10,共5页Journal of Wuyi University

基　　金：中央引导地方科技发展专项(2021L3058);福建省科技厅科技创新平台项目(2018N2004);福建省科技厅引导性项目(2019Y0045)。

摘　　要：利用响应面法优化茶树修剪鲜叶中茶多酚提取的工艺条件,在单因素实验基础上,选择料液比、提取时间、乙醇浓度、提取次数为考察因素,采用多重响应面法优化茶多酚的提取工艺条件。最佳提取工艺:料液比1∶50、提取时间30 min、乙醇浓度80%、提取次数1次。采用该提取工艺所得茶多酚提取率为94.85%,含量为158.40 mg/g。与响应面拟合所得方程预测值95.12%符合良好。It's to optimize the technological conditions of extracting tea polyphenols from fresh leaves of tea trees by response surface methodology.Based on the single factor experiment,the material-liquid ratio,extraction time,ethanol concentration,and extraction times were selected as the examination factors,and the multiple extraction surface method was used to optimize the extraction process of tea polyphenols.The best extraction process:material-liquid ratio 1∶50,extraction time 30min,ethanol concentration 80%,extraction frequency 1 time.The extraction rate of tea polyphenols obtained by this extraction process is 94.85%,and the content is 158.40mg/g.The predicted value of the equation obtained by fitting with the response surface is 95.12%in good agreement.

关 键 词：茶多酚 溶剂提取法 秋季茶树 鲜叶响应面法 提取工艺 

分 类 号：TS272.5[农业科学—茶叶生产加工]