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Occurrence and Characteristics of Listeria monocytogenes in Ready-to-Eat Meat Products in Poland

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dc.abstract.enListeria monocytogenes is a potential hazard for food safety and therefore for public health. The aim of the present study was to determine the prevalence and characteristics of L. monocytogenes in Polish ready-to-eat (RTE) meat products for retail sale. Among the 184,439 food samples collected within the framework of a national official control and monitoring program, only 0.3% were positive for L. monocytogenes. A significant group of products that did not meet the criteria were RTE meat products. This group accounted for 40% of all noncompliant samples. Seventy L. monocytogenes isolates from these RTE meat products (meat, sausages, and delicatessen products with meat) were examined. The majority of the tested isolates (51%) belonged to serogroup 1/2a-3a followed by 1/2c-3c (21%), 1/2b-3b-7 (14%), and 4ab-4b-4d-4e (13%). Serogroup 4a-4c was not present among the tested isolates. All L. monocytogenes isolates harbored the virulence-associated genes inlA, inlC, inlJ, and lmo2672. The llsX marker was detected in 12 (17%) of the 70 isolates. Ampicillin resistance was the most common resistance phenotype and was identified in 83% of the L. monocytogenes isolates. A low incidence of resistance to amoxicillin-clavulanic acid (6% of isolates) was also detected. All L. monocytogenes isolates were susceptible to chloramphenicol, gentamicin, ciprofloxacin, meropenem, sulfamethoxazole-trimethoprim, tetracycline, and erythromycin. This work provides useful information regarding contamination of RTE meat products with L. monocytogenes, which may have implications for food safety risks.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorKorsak, Dorota
dc.contributor.authorKucharek, Katarzyna
dc.contributor.authorKowalska, Joanna
dc.contributor.authorMaćkiw, Elżbieta
dc.contributor.authorPostupolski, Jacek
dc.contributor.authorStasiak, Monika
dc.date.accessioned2024-01-25T15:13:59Z
dc.date.available2024-01-25T15:13:59Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.number6
dc.description.volume83
dc.identifier.doi10.4315/JFP-19-525
dc.identifier.issn0362-028X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/114245
dc.identifier.weblinkhttp://meridian.allenpress.com/jfp/article-pdf/83/6/1002/2495637/i0362-028x-83-6-1002.pdf
dc.languageeng
dc.pbn.affiliationbiological sciences
dc.relation.ispartofJournal of Food Protection
dc.relation.pages1002-1009
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleOccurrence and Characteristics of Listeria monocytogenes in Ready-to-Eat Meat Products in Poland
dc.typeJournalArticle
dspace.entity.typePublication