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

• 工艺技术 • 上一篇    下一篇

超临界法制备玉米共轭亚油酸的工艺研究

王大为1,刘婷婷1,孙月琛2,于 君1   

  1. 1.吉林农业大学食品科学与工程学院 2.成都中医药大学药学院
  • 收稿日期:2009-06-25 出版日期:2009-10-15 发布日期:2010-12-29
  • 通讯作者: 王大为1 E-mail:xcpyfzx@163.com
  • 基金资助:

    长春市科技支撑计划项目(2007KZ16)

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

摘要:

以玉米胚芽油为原料,采用超临界法制备玉米共轭亚油酸(CLA)。通过正交试验方法确定最佳工艺条件为温度80℃、油:碱为1:0.5、时间4h、油:溶剂为1:2、压力15MPa,此时异构化效果理想,经气相色谱检测CLA转化率97.65%,产品中c9,t11-CLA与t10,c12-CLA含量分别为27.72%和30.88%。

关键词: 玉米, 共轭亚油酸, 超临界, 制备

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 

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