FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (8): 230-232.

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Research on Extraction of Flavonoid in Infructescence of Platycarya Strobilacea Sieb. et Zucc with Diferent Distilling Methods

 GAO  Rong, LI  Wen-Hong, LIU  Ming-Xia, LI  Dong, LIAO  Chang-Jian, ZHANG  Yuan   

  1. Shaanxi Research Center of Chemical, Engineering and Tchnology for Resource Utilization, College of Chemical and Engineering, Northwest University, Xi’an 710069, China
  • Online:2007-08-15 Published:2011-10-24

Abstract: Extract flavonoid from infructescence of Platycarya Strobilacea Sieb. et Zucc. Analysing the water extraction and alcohol precipitation, the technologies of ethylalcohol circulating and ultrasonic extracting these three different methods, all the results showed that: the yield is higher with the technologies of ethylalcohol circulating than the others, and it is simple and efficient. The optimum extraction conditions are determined via response surface analysis just as follows: the temperature, extraction time, concentration of ethylalcohol, ratio of solid to liquid and extraction time are 60 ℃, 3 times, 70.00%, 1:10 and 4.5 h.

Key words: infructescence of Platycarya Strobilacea Sieb. et Zucc, flavonoid, extraction method, yield