Comparison and optimization of conjugated linoleic acid production by Lactobacillus plantarum and Lactobacillus plantarum subsp. plantarum

Document Type : Article

Authors

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Abstract

Conjugated Linoleic Acid (CLA) was produced from castor oil using washed cells of Lactobacillus plantarum PTCC 1058 and Lactobacillus plantarum subsp. plantarum PTCC1745 as the catalyst. Under the optimal reaction conditions, the washed cells of Lactobacillus plantarum PTCC1058 produced 1661.26 mg of CLA/L reaction mixture (36% yield of production) from 4.6 mg/ml of castor oil after using 15% (w/v) cell for 121 h.
The resulting CLA was mixture of two CLA isomers, cis-9, trans-11 (or trans-9, cis- 11)-octadecadienoic acid (CLA1, 44% of total CLA) and trans-10, cis-12-octadecadienoic acid (CLA2, 46% of total CLA). The total production of CLA is extracellular in all of the reactions performed with Lactobacillus plantarum PTCC1058. Also, Lactobacillus plantarum PTCC1745 produced 1590.31 mg of CLA/L reaction mixture (16.5% production
yield) from 9.6 mg/ml of castor oil after using 15% (w/v) cell for 121 h. Therefore, Lactobacillus plantarum PTCC1058 was suggested for CLA production due to its more production ability and CLA extracellular production.

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Scientia Iranica
Volume 24, Issue 3
Transactions on Chemistry and Chemical Engineering (C)
May and June 2017
Pages 1272-1280

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History

  • Receive Date: 06 February 2016
  • Revise Date: 04 October 2016
  • Accept Date: 27 December 2016

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