Abstract:

In order to solve in the Pu-erh tea polysaccharide extraction process the parameter hypothesis question, use the single factor experiment to analyze three main factors: extraction temperature, extraction time, ratio of materials and liquid influence on the extraction yield of tea polysaccharide, use central design composite design combined with response surface methodology (RSM), confirm the optimum extraction conditions of Pu-erh tea polysaccharide. The results of RSM showed that the optimum extraction process was that the extraction temperature was 80℃, the extraction time was 78.5 minutes, the ratio of material and liquid was 1:17, the yield of tea polysaccharide was 12.72%. Using the response surface methodology (RSM) to carry on the optimization to the Pu-erh tea polysaccharide extraction process to be feasible, the tea polysaccharide's extraction rate increased obviously.