渥丹多糖提取工艺研究

采用水煮醇沉法，通过单因子试验和正交试验，对渥丹可溶性粗多糖的提取工艺进行研究，其结果表明：料水比（A）、提取时间（B）、提取温度（C）、乙醇终浓度（D）4因素对多糖提取率影响的主次顺序为A〉B〉D〉C，料水比为主要因素。最佳提取工艺为A2B3C1D2,即提取温度70℃、V（料）：V（液）=1：15、提取时间3h，乙醇终浓度80％，渥丹多糖的提取率为3．252％。

Study on Extraction Technology of Lilium Concolor Salisb.Polysaccharides

Extraction technology of lilium concolor Salisb.soluble polysaccharides with the water extracting ethanol precipiting process was studied by single factor experiments and orthogonal test, The results indicate that： the effect order of four factors including sample-water ratio（A ）, extraction time（B ） ,extraction temperature（C）, the final concentration of ethanol （D）is A 〉B〉D〉C, ratio of material to water is the main factor. The optimal extracting process condition is as follows：temperature 70℃, ratio of material to water 1：15, extraction time 3 h, final ethanol concentration 80%. Under this condition, extraction rate of Lilium concolor Salisb. Polysaccharides is 3.252%.