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Structural elucidation of a 3-O-methyl-D-galactose-containing neutral polysaccharide from the fruiting bodies of Phellinus igniarius

文献类型: 外文期刊

作者: Yang, Yan 1 ; Zhang, JingSong 2 ; Liu, YanFang 2 ; Tang, QingJiu 2 ; Zhao, ZiGao 2 ; Xia, WenShui 2 ;

作者机构: 1.So Yangtze Univ, Minist Educ, Key Lab Food Sci & Safety, Wuxi 214060, Jiangsu, Peoples R China

2.So Yangtze Univ, Minist Educ, Key Lab Food Sci & Safety, Wuxi 214060, Jiangsu, Peoples R China; Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai 201106, Peoples R China

关键词: Phellinus igniarius;Polysaccharide;Structural analysis;NMR spectroscopy

期刊名称:CARBOHYDRATE RESEARCH ( 影响因子:2.104; 五年影响因子:2.192 )

ISSN:

年卷期:

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收录情况: SCI

摘要: PIP60-1,a novel heteropolysaccharide isolated from fruiting bodies of the medicinal fungus,Phellinus igniarius,has a molecular weight of 1.71 x 10~4Da and is composed of L-fucose,D-glucose,D-mannose,D-galactose and 3-O-Me-D-galactose in a ratio of 1:1:1:2:1.A structural investigation of PIP60-1 carried out using sugar and methylation analyses,combined with 1H and 13C NMR spectroscopy,including COSY,TOCSY,NOESY,HSQC and HMBC experiments,established the repeating unit of the polysaccharide as the following.

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