Adhesion to stainless steel surfaces and detection of viable but non cultivable cells of Vibrio parahaemolyticus and Vibrio cholerae isolated from shrimps in seafood processing environments: Stayin' alive?

Autor: Marie-Laure Quilici, Thierry Grard, Annick Robert-Pillot, Graziella Midelet-Bourdin, Virginie Raguenet, Maryse Bonnin-Jusserand, Julia Mougin, Daline Bojolly, Stéphanie Copin
Přispěvatelé: Institut Charles Viollette (ICV) - EA 7394 (ICV), Université d'Artois (UA)-Institut National de la Recherche Agronomique (INRA)-Université du Littoral Côte d'Opale (ULCO)-Institut Supérieur d'Agriculture-Université de Lille, Laboratory for Food Safety, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Centre National de Référence des Vibrions et du Choléra - National Reference Center Vibrios and Cholera (CNR), Institut Pasteur [Paris], 'Hauts-de-France' regional council, region Hauts-de-France, FranceAgriMer as part of the SURVIB project [2014-0813], French government, Biochimie des Produits Aquatiques (BPA), Université du Littoral Côte d'Opale (ULCO)-Transfrontalière BioEcoAgro - UMR 1158 (BioEcoAgro), Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Laboratoire de sécurité des aliments de Maisons-Alfort (LSAl), Institut Pasteur [Paris] (IP)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Food Control
Food Control, Elsevier, 2019, 102, pp.122-130. ⟨10.1016/j.foodcont.2019.03.024⟩
Food Control, 2019, 102, pp.122-130. ⟨10.1016/j.foodcont.2019.03.024⟩
ISSN: 0956-7135
Popis: International audience; A single strain of Vibrio parahaemolyticus and a single strain of Vibrio cholerae were isolated from shrimps sourced from seafood processing plants. The isolated strains were evaluated for their ability to adhere to stainless steel surfaces, under conditions encountered in seafood industries. In this way, the impact of different environmental factors such as temperature (8 degrees C or 37 degrees C) and culture media (tryptic soy broth (TSB) 2% NaCl, artificial sea water (ASW) or industrial brine) were studied. The viability of these strains was analyzed by three different methods: the enumeration of cultivable bacteria on agar media, and two PCR methods, i.e. a qPCR and a PMA-qPCR method in order to distinguish between viable and dead cells. The proportion of viable but non-cultivable (VBNC) cells was evaluated by comparing the results of propidium monoazide real-time PCR (PMA-qPCR) with the enumeration results. Cultivable bacteria were not detected in brine, regardless of the conditions tested. However, V. cholerae in the VBNC state was detected in brine at 8 degrees C until 48 h of incubation. V. cholerae exhibited higher viability at 8 degrees C compared to 37 degrees C. V. cholerae also exhibited higher viability compared to V. parahaemolyticus. In contrast, for V. parahaemolyticus, temperature and media (except industrial brine) had little influence on cell viability and adhesion behavior.
Databáze: OpenAIRE
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