2009•Journal of Chongqing Technology and Business UniversityRequires access

Study on the antioxidative activites of polysaccharides from cucumis saticus L.

Ping Xu

Abstract

Cucumber polysaccharides(CP) were obtained by hot water extraction,ethanol precipitation,sevage method removing proteins and organic solvent purification.Polysaccharides content was determined by anthrone-H2SO4 colorimeter.Using the superoxide radical system,hydroxyl radical system,and system of 2,2-Diphenyl-1-picryhydrazyl(DPPH·),the antioxidation activities of cucumber polysaccharides is studied.The results showed that CP had strong radical scavenging activity towards DPPH·,·OH and O-2·.The capacity of scavenging free radicals of cucumber polysaccharides showed linear connections with the concentration.

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Key concepts: Polysaccharide, Chemistry, DPPH, Ethanol precipitation, Scavenging, Extraction (chemistry), Radical, Ethanol