微波辅助萃取提取茶叶中茶多糖的工艺研究  

Extraction of Tea Polysaccharides by Microwave Technique

作　　者：李鹤[1] 马力[1] 张诗静[1] 李夏菲[1] 

机构地区：[1]西华大学生物工程学院,成都四川610039

出　　处：《生命科学仪器》2010年第4期50-53,共4页Life Science Instruments

摘　　要：以绿茶为原料,采用微波辅助提取技术,以多糖得率为指标,通过单因素实验结合正交实验确定微波提取最佳工艺参数。实验结果表明,微波提取茶多糖的最佳工艺参数为:茶叶与水的质量比为1:35,微波功率为500W,50℃加热提取,提取时间5min,绿茶中多糖的得率为1.991mg/g。Tea polysaccharides were extracted by microwave technique microwave-assisted extraction technology, yield of polysaccharide as the index. The optimum parameters of the technology were obtained through single-factor and orthogonal test. The results showed that the optimum technical parameters were： The solid-liquid ratio of l：35, heat at 50℃and the extracting time of 5min under the microwave power of 500W, for each time. In this optimum extracion conditions, tea polysaccharide yield was 1.991mg/g.

关 键 词：绿茶 茶多糖 微波辅助提取 

分 类 号：TS251.42[轻工技术与工程—农产品加工及贮藏工程]