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Aeromonas hydrophila : capacité d'adhésion aux surfaces en acier inoxydable.

Attachment of Aeromonas hydrophila to stainless steel surfaces.

Auteurs : BAL'A M. F. A., JAMILAH I. D., MARSHALL D. L.

Type d'article : Article

Résumé

This study evaluated the ability of Aeromonas hydrophila to attach to and form biofilms on stainless steel surfaces at different temperatures and incubation times. Following a 3-minute exposure, A. hydrophila adhered to stainless steel surfaces and was not removed by a 10-second vortex wash regardless of temperature. Biofilm complexity and extracellular material increased at 28 deg C as incubation time was extended. At 4 deg C no complex structure was observed. A. hydrophila failed to attach to stainless steel at 42 deg C. Scanning electron microscopy provided information on structure and morphology of cells but was not appropriate for cell quantitation. Glass bead removal of attached cells was rapid and quantitative but provided no information on biofilm structure. Biofilm cell population on stainless steel chips reached 100 000 CFU/chip following 8 days incubation at 28 deg C. Results show that A. hydrophila can easily attach to and colonize stainless steel surfaces, which may impact food quality and safety should control measures fail.

Détails

  • Titre original : Attachment of Aeromonas hydrophila to stainless steel surfaces.
  • Identifiant de la fiche : 1999-2282
  • Langues : Anglais
  • Source : Dairy Food environ. Sanit. - vol. 18 - n. 10
  • Date d'édition : 10/1998
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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