title: A beta-D-glucan from the sclerotia of Pleurotus tuber-regium (Fr.) Sing.
abstract: An alkali-soluble polysaccharide (Hunai polysaccharide, 1) from the fruit body of Pleurotus tuber-regium (Fr.) Sing was shown to be homogeneous by gel permeation chromatography and its molecular weight was approximately 4.3 x 10(5). Complete acid hydrolysis, periodate oxidation, Smith degradation, methylation, FT-IR and 13C NMR analysis, complex formation with Congo Red, indicated that 1 has a beta-(1 --> 3)-linked D-glucopyranosyl backbone with a single beta-D-glucopyranosyl group at O-6 of every third glucose residue.
authors.affiliation: Department of Chemistry, Huazhong University of Science and Technology, Wuhan , PR China.
authors.forename: D
authors.initials: D
authors.lastname: Chenghua
authors.forename: Y
authors.initials: Y
authors.lastname: Xiangliang
authors.forename: G
authors.initials: G
authors.lastname: Xiaoman
authors.forename: W
authors.initials: W
authors.lastname: Yan
authors.forename: Z
authors.initials: Z
authors.lastname: Jingyan
authors.forename: X
authors.initials: X
authors.lastname: Huibi
mesh_terms: D002236:Carbohydrate Conformation; D002850:Chromatography, Gel; D005936:Glucans / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D008970:Molecular Weight; D019906:Nuclear Magnetic Resonance, Biomolecular; D018514:Plant Structures / Q000737:chemistry; D020076:Pleurotus / Q000737:chemistry*
chemical_list: D005936:Glucans