Purification and Characterization of a Low Molecular Weight Neutral Non-Starch Polysaccharide from Panax ginseng by Enzymatic Hydrolysis
文献类型: 外文期刊
第一作者: Ying, Ying
作者: Ying, Ying;Wu, Hongxin;Ying, Ying;Ma, Chao;Zhang, Yajie;Li, Xiaoping
作者机构:
关键词: ginseng polysaccharide; chromatographic separation; monosaccharide composition; structure analysis
期刊名称:POLISH JOURNAL OF FOOD AND NUTRITION SCIENCES ( 影响因子:2.4; 五年影响因子:2.8 )
ISSN: 1230-0322
年卷期: 2023 年 73 卷 1 期
页码:
收录情况: SCI
摘要: In this study, a novel neutral non-starch polysaccharide (GP1A) was extracted using hot water from ginseng roots. Chemical characteristics, monosaccharide compositions and structure of GP1A were investigated using scanning electron microscopy, gel permeation chromatography, X-ray diffraction, Fourier transform infrared spectroscopy, gas chromatography with mass spectrometer, one-dimensional and two-dimensional nuclear magnetic resonance. The results indicated that the lyophilized GP1A was a homogeneous polysaccharide with a low molecular weight of 1.03 kDa. The dominating monosaccharides of GP1A were D-glucose, D-galactose, D-mannose, D-xylose and D-arabinose. The structure analysis indicated the main chain residues sequence of GP1A was alpha-D-Glcp-(6-*3)-alpha-D-Galp-(1-*1)-alpha-D-Glcp-(3-*4)-beta-D-Manp-(2-*2)-beta-D-Arap with branch chains of alpha-D-Glcp substituted at alpha-D-Galp and beta-D-Xylp substituted at beta-D-Manp.
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