A water-insoluble (1→3)-β-D-glucan from the alkaline extract of an edible mushroom Termitomyces eurhizus

A water-insoluble glucan, TEINS has been isolated from the hot alkaline extract of an edible mushroom Termitomyces eurhizus. The total carbohydrate content of the polysaccharide fraction was found to be 98.4%, and it was found to contain only glucose as the monosaccharide constituent. On the basis of total acid hydrolysis, a methylation experiment, periodate oxidation and C-13 NMR experiment, the repeating unit of the polysaccharide was established as: -> 3)-beta-d beta Glcp-(1 -> (c) 2006 Elsevier Ltd. All rights reserved.