Article ID Journal Published Year Pages File Type
1385427 Carbohydrate Polymers 2010 6 Pages PDF
Abstract

In this study, four purified polysaccharides (APPsA-1, APPsB-1, APPsB-2 and APPsC-1) were derived from the fruiting bodies of Auricularia polytricha by size-exclusion chromatography and ion-exchange chromatography on an ÄKTA explore 100 purification system. Chemical and physical characteristics of four purified polysaccharides were investigated by a combination of chemical and instrumental analysis methods. On the basis of hydroxyl radical assay, superoxide radical assay and Fe2+-chelating ability assay, the antioxidant activities of APPsA-1, APPsB-1, APPsB-2 and APPsC-1 were investigated. The results showed that all fractions exhibited antioxidant activities in a concentration-dependent manner, and the higher the content of uronic acid, the stronger the antioxidant activities of APPs. Therefore they should be developed as new antioxidant agents.

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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