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Presence of Listeria monocytogenes in Mediterranean-Style Dry Fermented Sausages.

Authors
  • Meloni, Domenico1
  • 1 Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy. [email protected] , (Italy)
Type
Published Article
Journal
Foods
Publisher
MDPI AG
Publication Date
Mar 12, 2015
Volume
4
Issue
1
Pages
34–50
Identifiers
DOI: 10.3390/foods4010034
PMID: 28231188
Source
Medline
Keywords
License
Unknown

Abstract

The morphological, physiological and epidemiological features of L. monocytogenes, together with the severity of human listeriosis infections, make L. monocytogenes of particular concern for manufacturers of cold-stored "ready to eat" (RTE) foods. L. monocytogenes has been isolated from a wide variety of RTE foods and is responsible for several outbreaks associated with the consumption of RTE meat, poultry, dairy, fish and vegetable products. Although L. monocytogenes is among the most frequently-detected pathogens in dry fermented sausages, these products could be included in the category of RTE products in which the growth of L. monocytogenes is not favored and have rarely been implicated in listeriosis outbreaks. However, L. monocytogenes is highly difficult to control in fermented sausage processing environments due to its high tolerance to low pH and high salt concentration. In many Mediterranean-style dry fermented sausages, an empirical application of the hurdle technology often occurs and the frequent detection of L. monocytogenes in these products at the end of ripening highlights the need for food business operators to properly apply hurdle technology and to control the contamination routes of L. monocytogenes in the processing plants. In the following, through an up-to-date review of (personal and un-) published data, the main aspects of the presence of L. monocytogenes in Mediterranean-style dry fermented sausages will be discussed.

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