FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (21): 56-61.doi: 10.7506/spkx1002-6630-201121013

• Basic Research • Previous Articles     Next Articles

in vitro Antioxidant Capacity of Chaenomeles sinensis (Thouin) Koehne Juice

ZHANG Shu-juan1,XU Huai-de1,*,MI Lin-feng2   

  1. (1. College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; 2. Yulin Product Quality Supervision and Inspection Station, Yulin 719000, China)
  • Online:2011-11-15 Published:2011-11-11

Abstract: The in vitro antioxidant capacity of Chaenomeles sinensis (Thouin) Koehne juice was evaluated and the correlations of antioxidant capacity with total phenol and ascorbic acid contents of the fruit juice were analyzed. The results showed that this juice possessed strong scavenging activity against ABTS radical, DPPH radical, hydroxyl radical and superoxide anion radical. The corresponding IC50 values were 0.0043, 0.021, 0.22 mL and 0.39 mL, respectively. The juice showed strong reducing power and significant inhibitory effects on Fe2+-induced peroxidation in yolk lipoprotein. Correlation analysis showed that total phenol content in Chaenomeles sinensis (Thouin) Koehne juice was higher correlated with free radical scavenging ability against DPPH and ABTS and with yolk lipoprotein peroxidation inhibiting ability than ascorbic acid. This study demonstrates that Chaenomeles sinensis (Thouin) Koehne juice possesses high antioxidant capacity and a great commercial development.

Key words: Chaenomeles sinensis (Thouin) Koehne, antioxidant capacity in vitro, correlation

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