title: Isolation and characterization of a heteroglycan from the fruits of Astraeus hygrometricus.
abstract: A water-soluble polysaccharide was isolated from an alkaline extract of the fruits of the ectomycorrhizal fungus, Astraeus hygrometricus. It was found to contain D-mannose, D-glucose, and L-fucose in a molar ratio of 1:2:1. On the basis of total hydrolysis, methylation analysis, periodate oxidation, Smith degradation, and NMR studies (1H, 13C, DQF-COSY, TOCSY, NOESY, ROESY, HMQC, and HMBC) the structure of the repeating unit of the polysaccharide was established as [Formula: see text]
authors.affiliation: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India.
authors.forename: Debabrata
authors.initials: D
authors.lastname: Maiti
authors.forename: Krishnendu
authors.initials: K
authors.lastname: Chandra
authors.forename: Subhas
authors.initials: S
authors.lastname: Mondal
authors.forename: Arnab K
authors.initials: AK
authors.lastname: Ojha
authors.forename: Debsankar
authors.initials: D
authors.lastname: Das
authors.forename: Sadhan K
authors.initials: SK
authors.lastname: Roy
authors.forename: Kaushik
authors.initials: K
authors.lastname: Ghosh
authors.forename: Indranil
authors.initials: I
authors.lastname: Chakraborty
authors.forename: Syed S
authors.initials: SS
authors.lastname: Islam
mesh_terms: D001487:Basidiomycota / Q000737:chemistry*; D002240:Carbohydrate Sequence; D048690:Fruiting Bodies, Fungal / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D011134:Polysaccharides