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植物科学学报 2011
Comparisons of Antioxidant Activity of the Polysaccharide from Different Parts of Elaeagnus umbellata Thunb.
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Abstract:
Polysaccharide of branches,leaves,and seeds of Elaeagnus umbellata Thunb.were extracted with hot water.Protein was excluded using the savage method,and then concentrated and precipitated with 80% ethanol to obtain the polysaccharide.Antioxidant activity of polysaccharide was evaluated by the efficiency of scavenging the hydroxyl radical and superoxide anion radical and reductive potential,with ascorbic acid used as a positive control.Results showed that the polysaccharide with three parts was effective in r...