Journal of Tianjin Agricultural University ›› 2017, Vol. 24 ›› Issue (3): 46-49.

• Researches and Scientific Notes • Previous Articles     Next Articles

Compare of Antioxidant Activity of Angelica sinensis Polysaccharide before and after Protein Removing

LIU Bo, WANG Qing-kui, XING Ke-zhiCorresponding Author, CHEN Cheng-xun   

  1. Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, College of Fisheries, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2016-12-05 Online:2017-09-30 Published:2019-10-15

Abstract: :This paper compared the antioxidant activity of Angelica sinensis polysaccharide(ASP)before and after protein removing. Crude A.sinensis polysaccharide(CASP)was extracted with hot water and precipitated with ethanol. The ASP was obtained by removing protein from CASP by Sevag method. Ferricyanide reduction method, fenton method, DPPH method, and adjacent benzene three phenol autoxidation method were adopted to assay the reduction ability and free radical-scavenging activity in vitro. The results showed that CASP and ASP exhibited significant reduction ability and free radical-scavenging activity(P<0.05). Within the same concentration, the reduction ability and free radical-scavenging activity of CASP were higher than those of ASP(P<0.05). However, the reduction ability and free radical-scavenging activity of CASP and ASP were feebler than those of ascorbic acid(P<0.05). These results indicate that CASP and ASP exhibited antioxidant ability, the antioxidant ability of CASP was stronger than that of ASP.

Key words: Angelica sinensis, polysaccharide, reduction ability, free radical-scavenging activity

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