Structural Characterization and Immunological Activities of a Novel Water-Soluble Polysaccharide from the Fruiting Bodies of Culinary-Medicinal Winter Mushroom, Flammulina velutipes (Agaricomycetes)
文献类型: 外文期刊
第一作者: Feng, Ting
作者: Feng, Ting;Jia, Wei;Wang, Wen-Han;Lin, Chi-Chung;Zhang, Jing-Song;Feng, Ting;Jia, Wei;Wang, Wen-Han;Lin, Chi-Chung;Zhang, Jing-Song;Feng, Ting;Bao, Hai-Ying;Fan, Hua
作者机构:
关键词: Flammulina velutipes;Immunological Activities;Medicinal mushrooms;Poly saccharides;purification
期刊名称:INTERNATIONAL JOURNAL OF MEDICINAL MUSHROOMS ( 影响因子:1.921; 五年影响因子:1.879 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: A water-soluble polysaccharide, designated FVPA2, was isolated from the fruiting bodies of Flammulina velutipes using DEAE Sepharose Fast Flow and gel-permeation chromatography. Its structure was elucidated by monosaccharide composition and methylation analysis, ultraviolet, Fourier transform infrared spectrometry, and nuclear magnetic resonance spectroscopy. Results showed that FVPA2 was a homogeneous heteropolysaccharide containing galactose, fucose, and mannose in a molar ratio of 5:1:1. High-performance liquid chromatography indicated its molecular weight as 3.4 X 10(4) Da. FVPA2 also has a repeating unit. In vitro immunomodulatory studies showed that Raw264.7 cells were stimulated to secret nitric oxide upon administration of 200-500 mu g/mL FVPA2. FVPA2 also stimulated the proliferation of mouse spleen lymphocytes and B lymphocytes.
分类号: Q94
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