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Probiotics and Antimicrobial Effect of Lactiplantibacillus plantarum , Saccharomyces cerevisiae , and Bifidobacterium longum against Common Foodborne Pathogens in Poultry

Author

Listed:
  • Joy Igbafe

    (Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA)

  • Agnes Kilonzo-Nthenge

    (Department of Human Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA)

  • Samuel N. Nahashon

    (Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA)

  • Abdullah Ibn Mafiz

    (Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA)

  • Maureen Nzomo

    (Department of Agriculture and Environmental Sciences, Tennessee State University, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA)

Abstract

The probiotic potential and antimicrobial activity of Lactiplantibacillus plantarum , Saccharomyces cerevisiae , and Bifidobacterium longum were investigated against Escherichia coli O157:H7, Salmonella typhimurium and Listeria monocytogenes . Selected strains were subjected to different acid levels (pH 2.5–6.0) and bile concentrations (1.0–3.0%). Strains were also evaluated for their antimicrobial activity by agar spot test. The potential probiotic strains tolerated pH 3.5 and above without statistically significant growth reduction. However, at pH 2.5, a significant ( p < 0.05) growth reduction occurred after 1 h for L. plantarum (4.32 log CFU/mL) and B. longum (5.71 log CFU/mL). S. cerevisiae maintained steady cell counts for the entire treatment period without a statistically significant ( p > 0.05) reduction (0.39 log CFU/mL). The results indicate at 3% bile concertation, 1.86 log CFU/mL reduction was observed for L. plantarum , while S. cerevisiae , and B. longum growth increased by 0.06 and 0.37 log CFU/mL, respectively. L. plantarum and B. longum demonstrated antimicrobial activity against E. coli O157:H7, S. typhimurium and L. monocytogenes . However, S. cerevisiae did not display any inhibition to any of the pathogens. The results indicate that L. plantarum and B. longum present probiotic potential for controlling E. coli O157:H7, S. and L. monocytogenes in poultry.

Suggested Citation

  • Joy Igbafe & Agnes Kilonzo-Nthenge & Samuel N. Nahashon & Abdullah Ibn Mafiz & Maureen Nzomo, 2020. "Probiotics and Antimicrobial Effect of Lactiplantibacillus plantarum , Saccharomyces cerevisiae , and Bifidobacterium longum against Common Foodborne Pathogens in Poultry," Agriculture, MDPI, vol. 10(9), pages 1-13, August.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:9:p:368-:d:401324
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    References listed on IDEAS

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    1. Ramanan Laxminarayan & Thomas Van Boeckel & Aude Teillant, 2015. "The Economic Costs of Withdrawing Antimicrobial Growth Promoters from the Livestock Sector," OECD Food, Agriculture and Fisheries Papers 78, OECD Publishing.
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