FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (4): 198-202.

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Study on the Ultrasonic Wave Extraction or Solvent Extraction of TGCO from Cornus officinalis Sieb.et Zucc.

 LI  Jian-Rong, XIA  Dao-Zong   

  1. 1.College of Food Science, Biotechnology and Environmental Engineering, Zhejiang Gongshang University;2.Department of Pharmacy, Zhejiang College of Traditional Chinese Medince
  • Online:2005-04-15 Published:2011-09-19

Abstract: This paper studied the extraction of TGCO from Cornus officinalis Sieb. et Zucc. by either solvent or ultrasonic wave. Orthogonal test tables L16(43×26) and L9(34) were used with the optimum factors of extracting temperature, extracting time, 95% ethanol volume, etc respectively. The results showed that ultrasonic wave extraction was more efficient than the solvent extraction and shortened the extracting time largely. The optimum conditions were as follows: extracting temperature 85℃, extracting time 2 hours and 95% ethanol volume 50ml. Under the conditions, an extract with panaxadiol (hydrolysate of TGCO) as high as 5.16mg/g was obtained.

Key words: Cornus officinalis Sieb. et Zucc., total glycosides of Cornus officinalis ultrasonic wave, extraction