The Comparative Study on Decoloration Efficiency of Polysaccharide from Wildness Pleurotus Ostrcatus

Water-soluble polysaccharide,was extracted from wildness pleurotus ostrcatus by ethanol precipitation and decolored by four dehydrants including activated carbon,DEAE fibrin,H_2O_2,phenol,respectively.The decoloration efficiency was evaluated by light-absorption intensity with yeast polysaccharide as a standard.The 0.75% activated carbon shows the best efficiency in removing colored impurity with absorption spectrum nearest to that of the standard.