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Title: Study of the population dynamics of Listeria monocytogenes and Pseudomonas fluorescens in buffalo mozzarella by means of challenge testing.
Authors: Nava, Donatella; Capo, Salvatore; Caligiuri, Vincenzo; Giaccone, Valerio; Biondi, Loredana; Vaccaro, Gerardo Francesco; Guarino, Achille; Capuano, Federico
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 as Listeria monocytogenes (L. monocytogenes). The present paper reports the results of a challenge test carried out to assess the population dynamics of L. monocytogenes, alone and in presence of Pseudomonas fluorescens (P. fluorescens), in buffalo mozzarella. For this purpose buffalo mozzarella samples were contaminated with L. monocytogenes alone or combined with P. fluorescens. In samples where L. monocytogenes was inoculated alone, the bacterial load remained unchanged. On the contrary, in samples contaminated with L. monocytogenes and P. fluorescens, the growth of L. monocytogenes increased.
Subjects: LISTERIA monocytogenes; PSEUDOMONAS fluorescens; MOZZARELLA cheese
Publication: Italian Journal of Food Safety, 2016, Vol 5, Issue 3, p124
ISSN: 2239-7132
Publication type: Academic Journal
DOI: 10.4081/ijfs.2016.5690

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Study of the population dynamics of Listeria monocytogenes and Pseudomonas fluorescens in buffalo mozzarella by means of challenge testing.