On calculating sterility in thermal preservation methods : application of the Weibull frequency distribution model

Abstract : A simple and parsimonious model originated from the Weibull frequency distribution was proposed to describe non linear survival curves of spores. This model was suitable for downward concavity curves (Bacillus cereus and Bacillus pumilus) as well as for upward concavity curves (Clostridium botulinum). It was shown that traditional F-values calculated from this new model were no more additive, to such an extend that a heat treatment should be better characterized by the obtained decade reduction of spores. A modified Bigelow method was then proposed to assess this decade reduction or to optimize the heat treatment for a target reduction ratio.
Type de document :
Article dans une revue
International Journal of Food Microbiology, Elsevier, 2002, pp.107- 113
Liste complète des métadonnées

Littérature citée [4 références]  Voir  Masquer  Télécharger

http://hal.univ-brest.fr/hal-00654614
Contributeur : Marielle Le Guen <>
Soumis le : jeudi 22 décembre 2011 - 14:32:38
Dernière modification le : mercredi 10 janvier 2018 - 14:42:39
Document(s) archivé(s) le : vendredi 23 mars 2012 - 02:31:18

Fichier

Mafart_et_al_2002_IJFM_Vol_72_...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00654614, version 1

Collections

Citation

Pierre Mafart, Olivier Couvert, Stéphane Gaillard, Ivan Leguérinel. On calculating sterility in thermal preservation methods : application of the Weibull frequency distribution model. International Journal of Food Microbiology, Elsevier, 2002, pp.107- 113. 〈hal-00654614〉

Partager

Métriques

Consultations de la notice

207

Téléchargements de fichiers

1077