alexa Modelling the competitive growth between Listeria monocytogenes and biofilm microflora of smear cheese wooden shelves.
Veterinary Sciences

Veterinary Sciences

Research & Reviews: Journal of Veterinary Sciences

Author(s): Guillier L, Stahl V, Hezard B, Notz E, Briandet R

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Abstract The aim of this study was to investigate the mechanism of the observed inhibition of Listeria monocytogenes by the natural biofilm microflora (BM) on wooden shelves used in the ripening of a soft and smear cheese. For this, BM was harvested and we conducted a series of experiments in which two strains of L. monocytogenes were co-cultured with BM on glass fiber filters deposited on model cheeses. Compared to monoculture, L. monocytogenes growth rate in co-culture was not reduced but the growth of the pathogen stopped as soon as BM entered the stationary phase. This reduction in maximum population density can be explained by nutrient consumption and exhaustion by BM as no production of inhibitors by BM has been detected. This mechanism of pathogen inhibition has been previously described as the "Jameson effect". This article was published in Int J Food Microbiol and referenced in Research & Reviews: Journal of Veterinary Sciences

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