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Isolation and characterization of a heteroglycan from the fruits of Astraeus hygrometricus |
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| Authors: | Maiti Debabrata Chandra Krishnendu Mondal Subhas Ojha Arnab K Das Debsankar Roy Sadhan K Ghosh Kaushik Chakraborty Indranil Islam Syed S |
| Institution: | Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721102, West Bengal, India. |
| 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] |
| Keywords: | Astraeus hygrometricus Ectomycorrhiza Polysaccharide Structure NMR spectroscopy |
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