食品科学 ›› 2006, Vol. 27 ›› Issue (11): 349-353.

• 工艺技术 • 上一篇    下一篇

微波作用下亚油酸转化为共轭亚油酸工艺的研究

  张泽生,  王浩,  胡爱军   

  1. 天津科技大学天津市食品营养与安全重点实验室
  • 出版日期:2006-11-15 发布日期:2011-11-28

Study on Conjugated Linoleic Acids Preparation by Microwave Irradiation

   Zhang-Ze-Sheng,   Wang-Hao,   Hu-Ai-Jun   

  1. Tianjin Key-Laboratory of Food Nutrition and Safety,Tianjin University of Science and Technology,Tianjin 300457,China
  • Online:2006-11-15 Published:2011-11-28

摘要:  以玉米胚芽油为原料,丙三醇为溶剂,在微波场作用下对亚油酸异构化为共轭亚油酸工艺进行了研究。通过紫外、红外吸收光谱分析,证明微波作用下生成的产物主要是共轭亚油酸,并含有顺式和反式共轭结构。与油浴加热方法比较微波作用异构化生产共轭亚油酸的方法优越可行。通过对影响共轭异构化反应的因素及正交试验的分析,确定了最佳工艺条件,获得了95%以上的共轭异构化转化率。

关键词:  , 微波, 共轭亚油酸, 异构化, 工艺条件

Abstract: The conjugated linoleic acid (CLA) preparation from linoleic acid of corn germ oil was investigated in glycerin solvent system under microwave irradiation. The molecular structures of end products were determined by UV and FT-IR spectrum. The results showed that they contained cis- and trans- double bonds. Compared with conventional heating with oil bath,microwave irradiation was an effective way to prepare CLA. Through the analysis of impact factors and results of orthogonal test,the optimal preparation conditions of CLA were gotten,CLA yield above 95%.

Key words:  , microwave irradiation; conjugated linoleic acid; isomerization; preparation condition;