Sources and survival of Listeria monocytogenes on fresh, leafy produce

Smith, A., Moorhouse, E., Monaghan, J.M., Taylor, C. and Singleton, I. (2018) Sources and survival of Listeria monocytogenes on fresh, leafy produce. Journal of Applied Microbiology.

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Listeria monocytogenes is an intracellular human pathogen which enters the body through contaminated food stuffs and is known to contaminate fresh leafy produce such as spinach, lettuce and rocket. Routinely, fresh leafy produce is grown and processed on a large scale before reaching the consumer through various products such as sandwiches and prepared salads. From farm to fork, the fresh leafy produce supply chain (FLPSC) is complex and contains a diverse range of environments where L. monocytogenes is sporadically detected during routine sampling of produce and processing areas. This review describes sources of the bacteria in the FLPSC and outlines the physiological and molecular mechanisms behind its survival in the different environments associated with growing and processing fresh produce. Finally, current methods of source tracking the bacteria in the context of the food supply chain are discussed with emphasis on how these methods can provide additional, valuable information on the risk that L. monocytogenes isolates pose to the consumer.

Item Type: Article
Keywords: food processing, food safety, listeria, microbial contamination, monocytogenes, soil
Divisions: Crop and Environment Sciences (to 31.07.20)
Depositing User: Ms Kath Osborn
Date Deposited: 07 Aug 2018 13:39
Last Modified: 24 Jul 2019 04:10

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