Antioxidant activities of different polysaccharide conjugates (CRPs) isolated from the fruiting bodies of Chroogomphis rutilus (Schaeff.: Fr.) O. K. Miller

作者：Sun Yong Xu^*; Kennedy John F

来源：Carbohydrate Polymers, 2010, 82(2): 510-514.

DOI：10.1016/j.carbpol.2010.05.010

• Chroogomphis rutilus
• Polysaccharide
• Antioxidant activity

Four water-soluble purified polysaccharides (CRPsA-1, CRPsA-2, CRPsB-1 and CRPsB-2) were obtained from the fruiting bodies of Chroogomphis rutilus by DEAE Sepharose Fast Flow column chromatography and Sepharose 6 Fast Flow column chromatography. Their chemical and physical characteristics were determined by chemical methods, gas chromatography (GC) and high-performance size-exclusion chromatography (HPSEC). On the basis of hydroxyl radical assay, superoxide radical assay and Fe(2+)-chelating ability assay, the antioxidant activities of CRPsA-1, CRPsA-2, CRPsB-1 and CRPsB-2 were investigated. Among these fractions, CRPsB-1 and CRPsB-2 containing glucuronic acid had the higher scavenging effects on hydroxyl radicals and superoxide radicals, and more potent Fe(2+)-chelating activity than CRPsA-1 and CRPsA-2 containing no glucuronic acid in a concentration-dependent manner.

• 出版日期2010-9-5
• 单位齐齐哈尔医学院