NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2014, Vol. 26 ›› Issue (12): 2037-2040.

• Article • Previous Articles     Next Articles

Isolation,Purification and Antioxidant Activity of Polysaccharide from Amomum villosum

LI Shi-jie, ZHANG Dan-yan*, YAN Ya-juan, CAO Man   

  1. School of Chinese Materia Medica,Guangzhou University of Chinese Medicine,Guangzhou 510006,China
  • Online:2014-12-31 Published:2015-01-09

Abstract: In the present study,the antioxidant activities of Amomum villosum polysaccharide (AVP) and its purified product were investigated.The crude AVP was purified by DEAE-cellulose-52 ion exchange column chromatography and further purified through a Sephadex G-100 column.The antioxidant activities of AVP and its purified fractions were then tested using superoxide anion radical system,hydroxyl radical system,1,1-diphenyl picrylhydrazyl radical system with vitamin C as a positive control.The results showed that AVP and its purified fractions showed strong scavenging ability on superoxide anion free radicals,hydroxyl radical and 1,1-diphenyl picrylhydrazyl radical,in which AVP-3 showed the strongest antioxidant activity.

Key words: Amomum villosum polysaccharide, antioxidant activity, free radical

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