超声波辅助提取茶鲜叶中茶多糖实验研究  

Research on Extraction of Tea Polysaccharide from Leaves

作　　者：周晓晴[1] 余飞[2] 邓丹雯[2] 房江育[1] 

机构地区：[1]黄山学院生命与环境科学学院,黄山245041 [2]南昌大学食品科学教育部重点实验室,南昌330047

出　　处：《江西食品工业》2008年第4期39-41,共3页Jiangxi Food Industry

摘　　要：本文研究了超声波辅助法提取茶树鲜叶中多糖的工艺。通过正交试验设计L9(34)提取多糖,以蒽酮-硫酸法测定多糖含量,得出优化工艺的条件为:固液比为1:10,浸提时间为60min、浸提温度为70℃、提取次数为3次,在此条件下茶粗多糖提取率为5.155%。Ultrasonic- assisted extraction was adopted to extract polysaccharide from tea leaves. The content of polysaccharide was determined by the spectrophotometer using sulphuric acid anthrone method. The optimal conditions were determined with the orthogonal design of L9 （3^4）, namely, the ratio of solid to liquid 1：10,temperature is 70 ℃ for 60min,and extraction times is three . and the extraction yield of tea polysaecharide is 5.155%.

关 键 词：茶叶 多糖 正交试验 超声波 

分 类 号：O657.5[理学—分析化学]