in vitro Antioxidant Activity of Polysaccharides from Viscum articulatum

Abstract

Abstract: Crude polysaccharide samples respectively obtained from Viscum articulatum from two different hosts by microwave-assisted aqueous extraction and subsequent ethanol precipitation were determined for their polysaccharide contents. The abilities of the two polysaccharide samples to scavenge hydroxyl free radicals generated by Fenton reaction, superoixde anion free radicals generated by autoxidation of 1,2,3-benzenetriol and DPPH radicals were spectrometrically evaluated. Meanwhile, their suppressing effects on hydroxyl radical-induced lipid peroxidation of lecithin were spectrometrically examined by thiobarbituric acid method. The results showed that both crude polysaccharides had obvious scavenging effect on active radicals and inhibitory effect on lecithin peroxidation to some extent. However, these antioxidant effects differed between the two polysaccharide samples.

Key words: Viscum articulatum, crude polysaccharide, antioxidation

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in vitro Antioxidant Activity of Polysaccharides from Viscum articulatum

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