Title: Isolation and structural characterization of a water-soluble polysaccharide from Hericium erinaceus
Abstract: A novel water-soluble heteropolysaccharide termed HEPF2 was isolated from the fruiting bodies of Hericium erinaceus.HEPF2 has a molecular weight of 1.66×104Da and is composed of fucose,galactose and glucose at a ratio of 1.00:3.69:5.42.HEPF2 also contains a small amount of 3-O-methylrhamnose.Its structural characteristics were further investigated by using combined technologies including FT-IR,sugar and methylation analysis,partial acid hydrolysis and NMR spectroscopy.The results showed that HEPF2 was a heteropolysaccharide chemically featured by(1→4)-linked glucosyl,(1→6)-linked glucosyl and(1→6)-linked galactosyl residue,attached to the O-2 of main chain with terminal fucosyl residue or a minor of terminal glucosyl and galactosyl residues.NMR spectra showed that(1→4)-linked glucosyl was β configuration,while(1→6)-linked galactosyl,(1→2,6)-linked galactosyl together with the terminal fucosyl residue were all α configuration.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 4
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