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Development of Commercially Viable Method of Conjugated Linoleic Acid Synthesis Using Linoleic Acid Fraction Obtained from Pork By-products

  • Yoon, Sung Yeoul (Department of Animal Science and Technology, Chung-Ang University) ;
  • Lee, Da Young (Department of Animal Science and Technology, Chung-Ang University) ;
  • Kim, On You (Department of Animal Science and Technology, Chung-Ang University) ;
  • Lee, Seung Yun (Department of Animal Science and Technology, Chung-Ang University) ;
  • Hur, Sun Jin (Department of Animal Science and Technology, Chung-Ang University)
  • Received : 2018.05.08
  • Accepted : 2018.06.07
  • Published : 2018.08.31

Abstract

The purpose of this study was to develop a commercially viable method for synthesis of conjugated linoleic acid (CLA) using the linoleic acid fraction obtained from six pork by-products (liver, lung, heart, stomach, small intestine, and large intestine). The workflow of CLA synthesis from each by-product was as follows: washing${\rightarrow}$crude fat extraction${\rightarrow}$fractionation into saturated and unsaturated fatty acids${\rightarrow}$repeat unsaturated fatty acid fractionation${\rightarrow}$CLA synthesis. Cis-9, trans-11, and trans-10, cis-12 CLA was synthesized from pork by-products. The yield of CLA synthesis of pork by-products ranged from 1.55 to 11.18 g per 100 g of by-products. The amount of synthesized CLA was the highest in the small intestine and large intestine by-products. Fractionation of pork by-products nearly doubled the yield of CLA. We suggest that commercial fractionation methods could increase the yield of CLA at low cost, reduce waste, and improve the efficiency of by-product utilization.

Keywords

References

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