Yan, Jingmin published the artcileAnalyses of active antioxidant polysaccharides from four edible mushrooms, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is edible mushroom antioxidant polysaccharide analyzes; Antioxidant activities; Mushroom polysaccharides; Structural characterization.
Four water-soluble polysaccharides were extracted from Pleurotus eryngii, Flammulina velutipes, Pleurotus ostreatus and white Hypsizygus marmoreus. Using anion exchange and gel permeation chromatog., a neutral and an acidic fraction were purified from each water-soluble polysaccharide. Their mol. weights were all around 20 kDa except that the acidic polysaccharide from Pleurotus ostreatus (named WPOPA) had a lower mol. weight of 5 kDa. Four neutral polysaccharides were mainly composed of galactose (42.7%-69.1%), followed by Man (19.4%-39.3%) and Glc (1.1%-15.9%). Four acidic polysaccharides contained glucose (59.0%-81.8%) as major sugar and minor glucuronic acid (4.5%-9.5%). Acidic polysaccharides exhibited stronger antioxidant activities than neutral fractions, and WPOPA showed the best antioxidant effects. Structural anal. indicated WPOPA had β-(1 → 6)-glucan backbone branched at O-3 by β-1,3-D-Glcp, t-β-D-Glcp and t-β-D-GlcpA. This investigation would be useful for screening natural antioxidants and significant in developing mushroom polysaccharides as functional foods.
International Journal of Biological Macromolecules published new progress about Carbohydrates Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.
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