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  • Title: Purification and antioxidant activities of intracellular zinc polysaccharides from Pleurotus cornucopiae SS-03.
    Author: Zhang J, Ma Z, Zheng L, Zhai G, Wang L, Jia M, Jia L.
    Journal: Carbohydr Polym; 2014 Oct 13; 111():947-54. PubMed ID: 25037435.
    Abstract:
    Intracellular zinc polysaccharides (IZPS) from Pleurotus cornucopiae SS-03 were extracted and purified, and three subfractions (IZPS-1, IZPS-2, and IZPS-3) were separated by DEAE-52 cellulose anion-exchange column chromatography. They showed certain scavenging effects on superoxide anion (O2(*-)) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, and positive rising of reducing power in vitro. All the subfractions were found upregulated the enzyme activities of superoxide dismutase (SOD), GSH peroxide (GSH-Px) and catalase (CAT) significantly, decreased the contents of malondialdehyde (MDA) and lipid peroxidation (LPO) remarkably in vivo. In addition, five monosaccharides components, including rhamnose, xylose, mannose, glucose, and galactose with the molar ratio of 1.65:0.05:1:1.50:1.07 and contents of 29.25%, 0.78%, 19.45%, 29.84%, and 20.67%, were investigated by gas chromatography.
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