FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (12): 527-530.

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Study on Ultrasonic Extraction Conditions of Edible Cactus Flavones and Its Antioxidative Activity

 PENG  Ai-Hong, YE  Peng, CHEN  Su-Yan, ZHENG  Shan-Shan, DENG  Qing-Lian   

  1. 1.School of Bioengineering, Jimei University, Xiamen 361021, China; 2.Xiamen Entry-Exit Inspection and Quarantine Bureau, Xiamen 361021, China
  • Online:2006-12-15 Published:2011-11-23

Abstract:  The conditions of ultrasonic leaching flavones from edible cactus by response surface analysis and the antioxidative effect of cactus flavones crude extracts was compared in vitro. The results showed that the optimal ultrasonic leaching conditions were 73.8% ethanol, ratio of solid to liquid 1:10, extracting time 18.8min. cactus flavones extract had strong activity of scavenging hydroxyl free radical of Fenton reation and DPPH·, whose IC50 values were 4.62mg/L and 7.92mg/L respectively. Its scavenging hydroxyl free radical activity stronger than rutin, thiourea, VC, and its scavenging DPPH· activity weaker than VC while stronger than rutin.

Key words: edible cactus, flavones, ultrasonic extraction conditions, response surface, antioxidative activity