FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (2): 193-196.

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Determination of Total Flavonoids and the Antioxidation Effect in Nanguo Pear

 HOU  Dong-Yan, HUI  Rui-Hua, YANG  Mei, LIU  Xiao-Yuan, TANG  Rui, ZHU  Yong-Qiang   

  1. 1.Department of Chemistry,Anshan Normal University; 2.Department of Chemistry,Liaoning Normal University; 3.Liaoning Longxing Biologe Science and Technology Co. Ltd.
  • Online:2005-02-15 Published:2011-09-19

Abstract: The ultrasonic method was used for extracting flavonoids of Nanguo Pear and the flavonoids were determined by spectrophotometry, the recovery is 92.0%~105.0% and the coefficient of variation is 0.14%. The antioxidation effect of Nanguo Pea was studied by the flow-injection chemiluminescence. The results show that Nanguo Pear has antioxidative effect.

Key words: Nanguo Pear, spectrophotometry, flow-injection chemiluminescence method, antioxidative effect