Study of Extraction Technics of Polysaccharide of Piteguo
ZHENG Yan-xia et al(College of Life Science and Engingeering,Lanzhou University of Technology,Lanzhou,Gansu 730050)
[Objective] The research aimed to look for a new method of the exploitation of Piteguo industry and improve the attached value.[Method] Water with ethanol precipitation was used to extract polysaccharides from Piteguo.The effects of different factors on polysaccharides extraction were investigated by single-factor experiments and orthogonal experiments as the extraction rate of polysaccharides as the examinable index.[Result] The optimal technological parameters of extracting polysaccharides were as follows:the extraction temperature of 95 ℃,the solid-liquid ratio of 1∶2 and ethanol concentration of 67%.Under this condition,the extraction rate of polysaccharides in Piteguo was 1.05 %.[Conclusion] The research provided the reference for the exploitation of Piteguo.
【CateGory Index】： TS245.4