Isolation and characterization of a heteroglycan from the fruits of Astraeus hygrometricus.
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]
Maiti
Debabrata
D
Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India.
Chandra
Krishnendu
K
Mondal
Subhas
S
Ojha
Arnab K
AK
Das
Debsankar
D
Roy
Sadhan K
SK
Ghosh
Kaushik
K
Chakraborty
Indranil
I
Islam
Syed S
SS
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*
D011134:Polysaccharides