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  • Title: Chemical analysis of an immunoenhancing water-soluble polysaccharide of an edible mushroom, Pleurotus florida blue variant.
    Author: Dey B, Bhunia SK, Maity KK, Patra S, Mandal S, Maiti S, Maiti TK, Sikdar SR, Islam SS.
    Journal: Carbohydr Res; 2010 Dec 10; 345(18):2736-41. PubMed ID: 20971448.
    Abstract:
    An immunoenhancing polysaccharide isolated from the aqueous extract of the fruit bodies of the mushroom, Pleurotus florida blue variant, was found to consist of d-glucose and d-galactose in a molar ratio of nearly 5:1. On the basis of sugar analysis, methylation analysis, periodate oxidation, Smith degradation, and NMR studies ((1)H, (13)C, DEPT-135, DQF-COSY, TOCSY, NOESY, ROESY, HMQC, and HMBC), the structure of the repeating unit of the polysaccharide was established as: →6)-β-D-Glcp-(1→3)-α-D-glcp-(1→[6)-β-D-Glcp-(1]3→ α-D=Glcp. The molecule activated macrophages, splenocytes, and thymocytes.
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