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A Comparative Study of Methods for Extracting Polysaccharide from Morinda officinalis How

CHEN Zhong~1,LIU Lin-ling~1,HE Meng-xiong~2,DENG Guang-qiang~2,HAN Zhang-ri~2(1.Department of Biology Hainan Normal University, Haikou 571158,China;2.Department of Chemisitry Hainan Normal University,Haikou 571158,China)  
Polysaccharides were extracted by several kinds of physical and chemical methods from Morinda officinalis How.By means of IR and UV-spectrums, it was identified that there were polysaccharides in these extractions.By analyzing their polysaccharide and protein, these methods were compared in terms of their respective yield of extraction and purification rate, and distilled water treatments is proved to be a good method for extracting polysaccharide from Morinda officinalis How.
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