title: Study of the Population Dynamics ofListeria MonocytogenesandPseudomonas Fluorescensin Buffalo Mozzarella by Means of Challenge Testing.
abstract: Campania's buffalo mozzarella is a greatly appreciated cheese in Italy and worldwide. From a microbiological standpoint, it is a highly perishable food and potentially at risk of contamination by pathogens such asListeria monocytogenes(L.monocytogenes). The present paper reports the results of a challenge test carried out to assess the population dynamics ofL.monocytogenes, alone and in presence ofPseudomonas fluorescens(P. fluorescens), in buffalo mozzarella. For this purpose buffalo mozzarella samples were contaminated withL.monocytogenesalone or combined withP. fluorescens.In samples whereL. monocytogeneswas inoculated alone, the bacterial load remained unchanged. On the contrary, in samples contaminated withL. monocytogenesandP. fluorescens, the growth ofL. monocytogenesincreased.
authors.affiliation: Institute for Experimental Veterinary Medicine of Southern Italy , Portici (NA), Italy.
authors.forename: Donatella
authors.initials: D
authors.lastname: Nava
authors.affiliation: Institute for Experimental Veterinary Medicine of Southern Italy , Portici (NA), Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Capo
authors.affiliation: Institute for Experimental Veterinary Medicine of Southern Italy , Portici (NA), Italy.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Caligiuri
authors.affiliation: Department of Animal Medicine, University of Padua , Padua, Italy.
authors.forename: Valerio
authors.initials: V
authors.lastname: Giaccone
authors.affiliation: Institute for Experimental Veterinary Medicine of Southern Italy , Portici (NA), Italy.
authors.forename: Loredana
authors.initials: L
authors.lastname: Biondi
authors.affiliation: Local Health Unit - Naples 3 South , Cercola (NA), Italy.
authors.forename: Gerardo Francesco
authors.initials: GF
authors.lastname: Vaccaro
authors.affiliation: Institute for Experimental Veterinary Medicine of Southern Italy , Portici (NA), Italy.
authors.forename: Achille
authors.initials: A
authors.lastname: Guarino
authors.affiliation: Institute for Experimental Veterinary Medicine of Southern Italy , Portici (NA), Italy.
authors.forename: Federico
authors.initials: F
authors.lastname: Capuano
keywords: Buffalo mozzarella; Campania; Challenge test; Listeria monocytogenes; Pseudomonas fluorescens