Optimization of Extraction Parameters for Tea Polysaccharides
WANG Li-ming,XIA Wen-shui* (School of Food Science, Southern Yangtze University, Wuxi 214036, China)
In this paper, the effects of time, temperature, ratio of tea to water(W/V), number of extraction times on the yield of tea polysaccharides were researched and the parameters for optimum yield were obtained by using SAS software. The results showed that time, ratio of tea to water and number of extraction had significant effect on the yield of tea polysaccharides, and the regression equation was Y=-4.279+0.006A+0.045B+87.03C-0.392D-470.96C2+0.212D2. Canonical Analysis showed that the optimum parameters were: extraction 90min at 70℃ with 1:10 ratio of tea to water, and 3 times of extraction in total.
【CateGory Index】： TQ464