FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (20 ): 64-67.doi: 10.7506/spkx1002-6300-200920009

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Supercritical Fluid Extraction of Conjugated Linoleic Acid from Corn Germ Oil

WANG Da-wei1,LIU Ting-ting1,SUN Yue-chen2,YU Jun1   

  1. (1. College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China ;
    2. College of Chinese Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China)
  • Received:2009-06-25 Online:2009-10-15 Published:2010-12-29
  • Contact: WANG Da-wei1 E-mail:xcpyfzx@163.com

Abstract:

A series of orthogonal array design experiments were conducted for developing the optimum supercritical fluid extraction procedure of conjugated linoleic acid (CLA) from corn germ oil, which was based on 4 h extraction at 80 ℃, 15 MPa  with ratios of oil to sodium hydroxide of 1:0.5 (W/W) and oil to solvent of 1:2 (W/W). Gas chromatographic analysis indicated that the CLA product obtained with a conversion ratio of 97.65% was composed of c9,t11-CLA (27.72%) and t10,c12-CLA (30.88%).

Key words: corn, conjugated linoleic acid, supercritical fluid extraction, preparation 

CLC Number: