Mechanistic model coupling gas exchange dynamics and Listeria monocytogenes growth in modified atmosphere packaging of non respiring food - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Food Microbiology Année : 2015

Mechanistic model coupling gas exchange dynamics and Listeria monocytogenes growth in modified atmosphere packaging of non respiring food

Résumé

A mechanistic model coupling O-2 and CO2 mass transfer (namely diffusion and solubilisation in the food itself and permeation through the packaging material) to microbial growth models was developed aiming at predicting the shelf life of modified atmosphere packaging (MAP) systems. It was experimentally validated on a non-respiring food by investigating concomitantly the O-2/CO2 partial pressure in packaging headspace and the growth of Listeria monocytogenes (average microbial count) within the food sample. A sensitivity analysis has revealed that the reliability of the prediction by this "super-parametrized" model (no less than 47 parameters were required for running one simulation) was strongly dependent on the accuracy of the microbial input parameters. Once validated, this model was used to decipher the role of O-2/CO2 mass transfer on microbial growth and as a MAP design tool: an example of MAP dimensioning was provided in this paper as a proof of concept. (C) 2015 Elsevier Ltd. All rights reserved.
Fichier non déposé

Dates et versions

hal-01269206 , version 1 (05-02-2016)

Identifiants

Citer

Estelle Chaix, Bertrand Broyart, O. Couvert, Carole Guillaume, Nathalie Gontard, et al.. Mechanistic model coupling gas exchange dynamics and Listeria monocytogenes growth in modified atmosphere packaging of non respiring food. Food Microbiology, 2015, 51, pp.192-205. ⟨10.1016/j.fm.2015.05.017⟩. ⟨hal-01269206⟩
354 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More