FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (6): 137-140.doi: 10.7506/spkx1002-6630-201006030

• Processing Technology • Previous Articles     Next Articles

Supercritical Carbon Dioxide Fluid Extraction of Functional Components from Momordica charantia L. Fruits

ZHANG Zhong-wei1,XIE Ming-yong2,*,WANG Yuan-xing2,LI Feng2   

  1. 1. College of Public Health, Nanchang University, Nanchang 330006, China;
    2. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Received:2008-12-31 Revised:2009-12-30 Online:2010-03-15 Published:2010-12-29
  • Contact: XIE Ming-yong2 E-mail:myxie@ncu.edu.cn

Abstract:

The supercritical carbon dioxide fluid extraction (SFE-CO2) was adopted to extract total momordicosides and total flavones from Momordica charantia L. fruits. Two sets of parameters for extracting total momordicosides and total flavones were optimized to maximize their yields using a U11(1110) uniform design and two regression models decribing the effects of extraction pressure and temperature and amount of added modifier (absolute ethanol) on the extraction of total momordicosides and total flavones were built up. The optimal conditions for the improved extraction of total momordicosides were determined as follows: extraction pressure 25.5 MPa, extraction temperature 42.5 ℃ and amount of added ethanol 180 mL, while those for extracting total flavones were 27.5 MPa, 39.5 ℃ and 226 mL, respectively. The maximum extraction yields of both total momordicosides and total flavones could be achieved by extraction for 3 h followed by one-step separationa at 35 ℃.

Key words: Momordica charantia L., momordicoside, flavones, uniform design, supercritical carbon dioxide fluid

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