Partager

Comportement de Listeria monocytogenes et d'Aeromonas spp. sur les légumes coupés et emballés sous atmosphère modifiée.

Behaviour of Listeria monocytogenes and Aeromonas spp. on fresh-cut produce packaged under equilibrium-modified atmosphere.

Auteurs : JACXSENS L., DEVLIEGHERE F., FALCATO P., et al.

Type d'article : Article

Résumé

Storage experiments were conducted to follow the behaviour of pathogens on fresh-cut vegetables (trimmed Brussels sprouts, grated carrots, shredded iceberg lettuce, and shredded chicory endives) packaged under an equilibrium-modified atmosphere (EMA) (2 to 3% O2, 2 to 3% CO2, and 94 to 96% N2) and stored at 7 °C. As a comparison, fresh-cut vegetables were also packaged in a perforated high-barrier film (air conditions) and stored at 7 °C. The shelf life of the vegetables in the two kinds of packages was determined by evaluating the microbiological quality and the sensorial quality. The shelf life of the vegetables stored under an EMA was extended by 50% or more, compared with the air-stored vegetables. In a second storage experiment, the four fresh-cut vegetables were inoculated with a cocktail of psychrotrophic pathogens (Listeria monocytogenes, Aeromonas caviae (HG4) and A. bestiarum (HG2) before packaging under an EMA and air at 7 °C. The inoculated pathogens were more influenced by the type of vegetable than by the type of atmosphere. Aeromonas spp. had a higher growth rate than L. monocytogenes on the shredded chicory endives and shredded iceberg lettuce at 7 °C.

Détails

  • Titre original : Behaviour of Listeria monocytogenes and Aeromonas spp. on fresh-cut produce packaged under equilibrium-modified atmosphere.
  • Identifiant de la fiche : 2001-0325
  • Langues : Anglais
  • Source : Journal of Food Protection - vol. 62 - n. 10
  • Date d'édition : 10/1999
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres articles du même numéro (3)
Voir la source

Indexation