Antibacterial Activity of Bacteriocin-Like Inhibitory Substances Produced by Lactic Acid Bacteria Isolated from Cheese against Pathogens

Indian Journal of Pharmaceutical Education and Research

  • Amal Alghamdi1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, SAUDI ARABIA.
  • Kholoud Hesham1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, SAUDI ARABIA.
  • Shahad Alghamdi1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, SAUDI ARABIA.
  • Aya Kadi1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, SAUDI ARABIA.
  • Aeshah Aljohani1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, SAUDI ARABIA.
  • Amal Shori1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, SAUDI ARABIA.

Volume 59 Issue 2 Pages 738-746

DOI: 10.5530/ijper.20250239

Abstract

Background: Lactic Acid Bacteria (LAB) produce bacteriocins, which have recently attracted considerable interest as alternatives to antibiotics. Cheese, a fermented food rich in LAB, is highly perishable and susceptible to contamination by foodborne pathogens. Objectives: This study aims to assess the antibacterial properties of Bacteriocin-Like Inhibitory Substances (BLIS) from four LAB i.e. Lactobacillus fermentum strain NBRC15885 (L. fermentum), Lacticaseibacillus paracasei strain NBRC 15889 (L. paracasei), Pediococcus acidilactici DSM 20284 (P. acidilactici), and Enterococcus faecium strain NBRC 100486 (E. faecium) isolated from Feta cheese sample against several antibiotics and bacterial pathogens. Materials and Methods: Antibacterial susceptibility test, and Agar well-diffusion test were conducted on LAB isolates. Results: L. fermentum and E. faecium displayed sensitivity to two types of antibiotics (imipenem and piperacillin). E. faecium BLIS showed the greatest effect on pathogenic bacteria, especially E. coli with an inhibition zone 1.5±0.14 cm. Conclusion: Bacteriocins produced by the four LAB isolates could effectively inhibit the growth of pathogen bacteria.

Keywords

  • Lactic acid bacteria
  • Bacteriocins
  • Feta cheese
  • Antibacterial activity
  • Pathogens and Antibiotics.
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