Utilization of monolinolein as a substrate for conjugated linoleic acid production by Bifidobacterium breve LMC 520 of human neonatal origin

Jin Choi Nag, Gyu Park Hui, Jun Kim Young, Hwan Kim In, Soon Kang Hye, Suk Yoon Chil, Geun Yoon Ho, Su Il Park, Woo Lee Jae, Hyun Chung Soo

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This study was designed to isolate bifidobacteria from human intestines that efficiently converts monolinolein, a monoglyceride form of linoleic acid, into conjugated linoleic acid (CLA), as well as to optimize culture conditions for improving CLA production during milk fermentation. Among 150 screened neonatal bifidobacteria, Bifidobacterium breve LMC 520 showed the highest CLA-producing ability and was tested with different types of fat substrates at various concentrations to determine the optimal conditions for CLA production. Monolinolein was tested as a substrate for CLA production. The incubation time optimized for CLA production was 24 h, and CLA production was proportionally increased with monolinolein concentration. The incubation of LMC 520 with commercial starter strains caused minimal reduction in CLA production. Our results demonstrate that the CLA-producing ability of B. breve LMC 520 could offer beneficial effects when utilized as a starter culture for the development of functional dairy products.

Original languageEnglish
Pages (from-to)10908-10912
Number of pages5
JournalJournal of agricultural and food chemistry
Volume56
Issue number22
DOIs
Publication statusPublished - 2008 Nov 26

Keywords

  • Bifidobacterium breve
  • Conjugated linoleic acid
  • Milk fermentation
  • Monolinolein
  • Starter

ASJC Scopus subject areas

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

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