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Structure of a water-soluble heteropolysaccharide from fruiting bodies of Hericium erinaceus

文献类型: 外文期刊

作者: Zhang, An-qiang 2 ; Fu, Li 2 ; Xu, Mei 2 ; Sun, Pei-long 2 ; Zhang, Jing-song 1 ;

作者机构: 1.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai 201106, Peoples R China

2.Zhejiang Univ Technol, Coll Biol & Environm Engn, Hangzhou 310014, Zhejiang, Peoples R China

关键词: Hericium erinaceus;Polysaccharide;Structural analysis;NMR spectroscopy

期刊名称:CARBOHYDRATE POLYMERS ( 影响因子:9.381; 五年影响因子:8.678 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: A new heteropolysaccharide (HEPF4), with a molecular weight of 2.03 x 10~4 Da as determined by high-performance liquid chromatography (HPLC), was obtained from the fruiting bodies of Hericium erinaceus. It is composed of 3-O-methylrhamnose, L-fucose, D-galactose and D-glucose in the ratio of 0.12:1.00:3.27:0.28. Its chemical structure was characterized by sugar and methylation analysis, along with ~1H and ~(13)C NMR spectroscopy, including NOESY and HMBC experiments for linkage and sequence analysis. The polysaccharide is composed of a tetrasaccharide repeating unit (described in the results section). HEPF4 also contains a minor proportion of glucose and 3-O-methylrhamnose which is believed to terminate the polymer main chain.

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