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Why does Listeria monocytogenes survive in food and food-production environments? Cover

Why does Listeria monocytogenes survive in food and food-production environments?

By: Jacek Osek and  Kinga Wieczorek  
Open Access
|Dec 2023

Abstract

Listeria monocytogenes is one of the most dangerous food-borne pathogens and is responsible for human listeriosis, a severe disease with a high mortality rate, especially among the elderly, pregnant women and newborns. Therefore, this bacterium has an important impact on food safety and public health. It is able to survive and even grow in a temperature range from -0.4°C to 45°C, a broad pH range from 4.6 to 9.5 and at a relatively low water activity (aW < 0.90), and tolerates salt content up to 20%. It is also resistant to ultraviolet light, biocides and heavy metals and forms biofilm structures on a variety of surfaces in food-production environments. These features make it difficult to remove and allow it to persist for a long time, increasing the risk of contamination of food-production facilities and ultimately of food. In the present review, the key mechanisms of the pathogen’s survival and stress adaptation have been presented. This information may grant better understanding of bacterial adaptation to food environmental conditions.

Language: English
Page range: 537 - 544
Submitted on: Jul 26, 2023
Accepted on: Nov 28, 2023
Published on: Dec 19, 2023
Published by: National Veterinary Research Institute in Pulawy
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2023 Jacek Osek, Kinga Wieczorek, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.