Modélisation de l'histoire thermique et microbiologique d'un produit réfrigéré dans la chaîne du froid - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Revue Générale du Froid et du Conditionnement d'Air Année : 2014

Modelling the thermal and microbiological history of a refrigerated product in the cold chain.

Modélisation de l'histoire thermique et microbiologique d'un produit réfrigéré dans la chaîne du froid

Onrawee Laguerre
Steven Duret
Hong-Minh Hoang
Laurent Guillier
Denis Flick

Résumé

This study presents the development of simplified thermal models based on a zonal approach for household refrigerator, refrigerated display cabinet and refrigerated vehicle. By combining thermal models with microbiological models, it allows the prediction of the product temperature and microbial load evolution in a supply chain. The developed models are coupled with statistical models to take into account the variability related to the equipment operating conditions, microorganisms and product properties. The developed methodology has been applied to packed sliced ham sold in self-service. A sensitivity analysis was performed; it allows ranking the impact of different factors on the evolution of the microbial load. It was found that the thermal history of the product is the most influential factor before the initial microbial load. The "acceptance/ rejection " analysis shows that about 4 % of the products may present health risks (contamination by listeria monocytogenes more than 100 CFu.g-1, colony-forming units per gram of product) at the consumption point.
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Dates et versions

hal-01569716 , version 1 (27-07-2017)

Identifiants

  • HAL Id : hal-01569716 , version 1

Citer

Onrawee Laguerre, Steven Duret, Hong-Minh Hoang, Laurent Guillier, Denis Flick. Modélisation de l'histoire thermique et microbiologique d'un produit réfrigéré dans la chaîne du froid. Revue Générale du Froid et du Conditionnement d'Air, 2014, 1143, pp.32-38. ⟨hal-01569716⟩
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