FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (11): 177-179.

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Analysis of Conjugated Linoleic Acids Content in Dairy Products by Gas Chromatography

 FAN  Ya-Wei, DENG  Ze-Yuan, LI  Jing   

  1. Department of Food Science and Engineering, Nanchang University, The Key Laboratory of Food Science, Ministry of Education
  • Online:2005-11-15 Published:2011-10-01

Abstract: Conjugated Linoleic Acid (CLA) was a new functional fatty acid, mainly existed in milk fat and meat fat of ruminant animals. CLA content in dairy products was affected by the processing conditions, storage and others. The fatty acid composition and content in the various dairy products were analyzed with capillary gas chromatography. The results indicated that the CLA content of the starter-cultured dairy products was relatively higher than that of the raw milk. The major isomer of the CLA in the samples was 9c,11t-CLA. Thus the trans-isomer CLA increased in the processed dairy products.

Key words: CLA, dairy products, gas chromatography