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Biofilm-associated persistence of food-borne pathogens

Abstract : Microbial life abounds on surfaces in both natural and industrial environments, one of which is the food industry. A solid substrate, water and some nutrients are sufficient to allow the construction of a microbial fortress, a so-called biofilm. Survival strategies developed by these surface-associated ecosystems are beginning to be deciphered in the context of rudimentary laboratory biofilms. Gelatinous organic matrices consisting of complex mixtures of self-produced biopolymers ensure the cohesion of these biological structures and contribute to their resistance and persistence. Moreover, far from being just simple three-dimensional assemblies of identical cells, biofilms are composed of heterogeneous sub-populations with distinctive behaviours that contribute to their global ecological success. In the clinical field, biofilm-associated infections (BAI) are known to trigger chronic infections that require dedicated therapies. A similar belief emerging in the food industry, where biofilm tolerance to environmental stresses, including cleaning and disinfection/sanitation, can result in the persistence of bacterial pathogens and the recurrent cross-contamination of food products. The present review focuses on the principal mechanisms involved in the formation of biofilms of food-borne pathogens, where biofilm behaviour is driven by its three-dimensional heterogeneity and by species interactions within these biostructures, and we look at some emergent control strategies.
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https://hal.archives-ouvertes.fr/hal-01204463
Contributor : Archive Ouverte Prodinra <>
Submitted on : Wednesday, September 23, 2015 - 9:18:38 PM
Last modification on : Monday, June 21, 2021 - 11:34:02 AM

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Arnaud Bridier, Pilar Sanchez-Vizuete, Morgan Guilbaud, Jean-Christophe Piard, Murielle Naitali, et al.. Biofilm-associated persistence of food-borne pathogens. Food Microbiology, Elsevier, 2015, 45 (Part D), pp.167-178. ⟨10.1016/j.fm.2014.04.015⟩. ⟨hal-01204463⟩

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