A NEW FUNGAL GLUKAN AND ITS PREPARATION

摘要

A new glukan is produced by oyster fungus (Pleurotus ostreatus). Said glukan is a homopolymer beta (1->3) glukan, which is substitued in the -0-6 position on each fourth anhydroglucose unit with glucose or disaccharides which contain the (1->6) or (1->4) bonding. The proportion or glucose to disaccharide in the branches is 2:1. A process for preparing said fungal glukan is described. The glukan is isolated from fruit-body of oyster fungus.