title: Structural investigation of a water-soluble glucan from an edible mushroom, Astraeus hygrometricus.
abstract: A water-soluble glucan, Fraction I, was isolated from the aqueous extract of the fruit bodies of the mushroom Astraeus hygrometricus. On the basis of total hydrolysis, methylation analysis, periodate oxidation, and NMR studies ((1)H, (13)C, 2D-COSY, TOCSY, NOESY, and HSQC), the structure of the repeating unit of the glucan is determined as:This glucan shows strong splenocyte activation.
authors.affiliation: Department of Chemistry & Chemical Technology, Vidyasagar University, West-Midnapore 721 102, West Bengal, India.
authors.forename: Indranil
authors.initials: I
authors.lastname: Chakraborty
authors.forename: Soumitra
authors.initials: S
authors.lastname: Mondal
authors.forename: Malay
authors.initials: M
authors.lastname: Pramanik
authors.forename: Dilip
authors.initials: D
authors.lastname: Rout
authors.forename: Syed S
authors.initials: SS
authors.lastname: Islam
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D001487:Basidiomycota / Q000737:chemistry*; D002236:Carbohydrate Conformation; D002849:Chromatography, Gas; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D011134:Polysaccharides / Q000737:chemistry / Q000302:isolation & purification*; D012995:Solubility; D014867:Water
chemical_list: D004187:Disaccharides; D011134:Polysaccharides; D014867:Water