[Studies on the polysaccharide of Fomes marginatus]

This paper reports that polysaccharose was prepared by ethanol precipitation of water extracted and by deproteinization with sevage method, purification obtain Fomes marginatus. The polysaccharose which was determined by using sephadex-G, PAGE, ACTME, TLC and PC is single composition. [alpha]D20 = 28.89, it content of polysaccharose is 22.62 percent. It was hydrolied of periodate oxidation, smith degradation and IR analysis, the results show that the main chain is composed of B-(1-->4), (1-->6) linkage.