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Three polysaccharides, PSPP1-1, PSPP2-1 and PSPP3-1, were isolated from purple sweet potato. The three polysaccharides belonged to β-type polysaccharides and contained low proportions of proteins and uronic acids. PSPP1-1 and PSPP3-1 with molecular weights of 33.3 and 75.3kDa, respectively, were composed of rhamnose, xylose, glucose and galactose, whereas PSPP2-1 with molecular weight of 17.8kDa was...
Polysaccharide from Astragalus membranaceus was investigated for its antioxidant potential. Major functional groups of the polysaccharide were analyzed by Fourier transmission-infrared spectroscopy (FT-IR) and gas chromatography (GC). Analysis of the polysaccharide from A. membranaceus revealed four sugars: glucose, galactose, mannose, arabinose. Mannose was the major components, followed by glucose,...
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