title: Thermal Inactivation and Growth Potential ofListeria Monocytogenesin Smoked Tench.
abstract: An experimental study for the evaluation ofListeria monocytogenesinactivation during a hot smoking process in tench was performed usingListeria innocuastrains. Furthermore, the survival ofL. monocytogenesin smoked tench was determined after post-processing in contaminated samples, evaluating the growth potential during storage.L innocuawas not detected after the smoking process. In the challenge test, the growth potential ofL. monocytogeneswas 5.68 log colony forming unit g-1. The results showed that hot smoking at an inner temperature around 72°C is able to eliminate the microorganism. Nevertheless, the product is able to support the growth of the pathogen if post-process contamination occurs, as the food is suitable forListeriamultiplication. Product recontamination should be prevented by means of appropriate application of hygiene measures.
authors.affiliation: Department of Veterinary Medicine, University of Perugia , Perugia, Italy.
authors.forename: Raffaella
authors.initials: R
authors.lastname: Branciari
authors.affiliation: Institute for Experimental Veterinary Medicine of Umbria and Marche , Perugia, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Valiani
authors.affiliation: Department of Sustainability Engineering, Guglielmo Marconi University , Rome, Italy.
authors.forename: Raffaella
authors.initials: R
authors.lastname: Franceschini
authors.affiliation: Department of Veterinary Medicine, University of Perugia , Perugia, Italy.
authors.forename: David
authors.initials: D
authors.lastname: Ranucci
authors.affiliation: Department of Veterinary Medicine, University of Perugia , Perugia, Italy.
authors.forename: Alessia
authors.initials: A
authors.lastname: Lupattelli
authors.affiliation: Department of Veterinary Medicine, University of Perugia , Perugia, Italy.
authors.forename: Eleonora
authors.initials: E
authors.lastname: Urbani
authors.affiliation: Institute for Experimental Veterinary Medicine of Umbria and Marche , Perugia, Italy.
authors.forename: Roberta
authors.initials: R
authors.lastname: Ortenzi
keywords: Listeria monocytogenes; Microbiological challenge test; Smoked tench