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Modélisation des effets de paramètres environnementaux (la température, le pH et l'activité de l'eau) sur la phase de latence de cellules individuelles de Listeria monocytogenes.

Modelling the effect of environmental parameters (temperature, pH and water activity) on the individual cell lag phase of Listeria monocytogenes.

Auteurs : FRANCOIS K., DEVLIEGHERE F., SMET K., et al.

Résumé

The effect of the environmental factors temperature (2-30°C), pH (4.4-7.4) and water activity (0.995-0.947) on the individual cell lag phase of Listeria monocytogenes was investigated. Individual cells were isolated using a serial dilution protocol and subsequent growth was investigated by optical density measurements. About 100 replicates were made for each set of environmental conditions. Individual cell lag phases and subsequent growth rates were calculated using a linear growth model.

Détails

  • Titre original : Modelling the effect of environmental parameters (temperature, pH and water activity) on the individual cell lag phase of Listeria monocytogenes.
  • Identifiant de la fiche : 2006-1815
  • Langues : Anglais
  • Source : Proceedings of the Third International Symposium on applications of modelling as an innovative technology in the agri-food chain. Model-IT 2005.
  • Date d'édition : 02/05/2005

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