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Development of Desiccation-Tolerant Probiotic Biofilms Inhibitory for Growth of Foodborne Pathogens on Stainless Steel Surfaces

National Institute of Animal Science, Rural Development Administration, Wanju-gun 55365, Korea
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Academic Editor: Joaquín Bautista-Gallego
Foods 2022, 11(6), 831; https://doi.org/10.3390/foods11060831
Received: 14 February 2022 / Revised: 8 March 2022 / Accepted: 11 March 2022 / Published: 14 March 2022
(This article belongs to the Section Food Microbiology)
Lactic acid bacteria biofilms can be used to reduce foodborne pathogen contamination in the food industry. However, studies on growth inhibition of foodborne pathogens by inducing biofilm formation of antagonistic microorganisms on abiotic surfaces are rare. We developed a desiccation-tolerant antimicrobial probiotic biofilm. Lactobacillus sakei M129-1 and Pediococcus pentosaceus M132-2 isolated from fermented Korean foods were found to exhibit broad-spectrum antibacterial activity against Bacillus cereus, Escherichia coli O157:H7, Staphylococcus aureus, Listeria monocytogenes, and Salmonella enterica. Their biofilm levels were significantly (p < 0.05) higher on stainless steel than on polyethylene or ceramic. Biofilms of both isolates showed significantly (p < 0.05) enhanced resistance against desiccation (exposure to 43% atmospheric relative humidity) as compared with the isolates not in the biofilm form. The antimicrobial activity of the isolates was sustained in dried biofilms on stainless steel surface; the initial number of foodborne pathogens (average 7.0 log CFU/mL), inoculated on stainless steel chips containing L. sakei M129-1 or P. pentosaceus M132-2 biofilm decreased to less than 1.0 log CFU within 48 h. The lactic acid bacteria antibacterial biofilms developed in this study may be applied to desiccated environmental surfaces in food-related environments to improve microbiological food safety. View Full-Text
Keywords: lactic acid bacteria; biofilm; stainless steel; desiccation lactic acid bacteria; biofilm; stainless steel; desiccation
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MDPI and ACS Style

Kim, J.-H.; Lee, E.-S.; Song, K.-J.; Kim, B.-M.; Ham, J.-S.; Oh, M.-H. Development of Desiccation-Tolerant Probiotic Biofilms Inhibitory for Growth of Foodborne Pathogens on Stainless Steel Surfaces. Foods 2022, 11, 831. https://doi.org/10.3390/foods11060831

AMA Style

Kim J-H, Lee E-S, Song K-J, Kim B-M, Ham J-S, Oh M-H. Development of Desiccation-Tolerant Probiotic Biofilms Inhibitory for Growth of Foodborne Pathogens on Stainless Steel Surfaces. Foods. 2022; 11(6):831. https://doi.org/10.3390/foods11060831

Chicago/Turabian Style

Kim, Jong-Hui, Eun-Seon Lee, Kyoung-Ja Song, Bu-Min Kim, Jun-Sang Ham, and Mi-Hwa Oh. 2022. "Development of Desiccation-Tolerant Probiotic Biofilms Inhibitory for Growth of Foodborne Pathogens on Stainless Steel Surfaces" Foods 11, no. 6: 831. https://doi.org/10.3390/foods11060831

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