Bacteriocin-producing lactic acid bacteria as a probiotic potential from Thai indigenous chickens

H. Musikasang, N. Sohsomboon, Akio Tani, S. Maneerat

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Bacteriocin-producing lactic acid bacteria (LAB) were isolated and screened from the gastrointestinal tract (GIT) of Thai indigenous chickens. The bacteriocinogenic activities and the primary probiotic properties were determined. The bacteriocins produced by 14 strains of selected LAB displayed inhibitory activity against indicator strains after the supernatants were neutralized with NaOH in the following species: Lactobacillus sakei subsp. sakei JCM1157, Enterococcus faecalis VanB, Bacillus sp., and Listeria monocytogenes. The antagonistic activity of selected LAB was inactivated or decreased after being treated with proteolytic enzymes (?-chymotrypsin and trypsin). CR5-1 strain exhibited the highest level of activity (5120 AU/ml) in the stationary phase againstL. sakei subsp. sakei JCM1157 in MRS broth at 37°C. The nine isolates of selected LAB were investigated for primary probiotic properties. The survival of the nine isolates was found to decrease approximately by 3 log CFU/ml after passing through the gastrointestinal conditions. All isolates exhibited protein digestion on agar plates but no isolates showed the ability to digest starch and lipid. Most of them showed high susceptibilities to some antibiotics (penicillin G, tetracycline and erythromycin). Thirteen LAB strains producing bacteriocin with strongly inhibitory activity were identified as Lactobacillus salivarius and only one strain was identified by 16S rDNA sequence analysis as Lactobacillus agilis.

Original languageEnglish
Pages (from-to)137-149
Number of pages13
JournalCzech Journal of Animal Science
Volume57
Issue number3
DOIs
Publication statusPublished - 2012

Keywords

  • Antibiotic susceptibility
  • Gastrointestinal tract
  • Poultry
  • Probiotic

ASJC Scopus subject areas

  • Animal Science and Zoology

Fingerprint Dive into the research topics of 'Bacteriocin-producing lactic acid bacteria as a probiotic potential from Thai indigenous chickens'. Together they form a unique fingerprint.

  • Cite this