Evaluation of listeriosis risk related with the consumption of non‐prepackaged ready‐to‐eat (RTE) cooked meat products handled at retail stores in Greece

• Published in: EFSA supporting publications 2019-07, Vol.16 (7), p.n/a
• Main Authors: Tsigarida, Eirini, Gaitis, Fragiskos, Garofalakis, Gorgias, Papanastasiou, Danai, Marakis, Georgios, Mila, Spyridoula, Barberis, Konstantinos, Tzoumanika, Fotini, Aspridou, Zafiro, Tsaloumi, Sofia, Koutsoumanis, Konstantinos
• Format: Article
• Language: English
• Subjects: Bacteria; Consumption; Food spoilage; Illnesses; Lactic acid; Lactic acid bacteria; Listeriosis; Meat; Meat products; Microorganisms; Product safety; Refrigerators; Retail stores; Risk assessment; Risk reduction; Sensitivity analysis; Slicing; Sodium nitrite; Spoilage; Temperature profiles; Turkeys; Water activity
• ISSN: 2397-8325; 2397-8325
• DOI: 10.2903/sp.efsa.2019.EN-1677

Data were collected for (i) consumption of non‐prepackaged ready‐to‐eat (RTE) cooked meat products, (ii) types of RTE cooked meat products available on the Greek market including analyses of water activity, pH, concentration of nitrite (NaNO2) and lactic acid bacteria, (iii) consumer practices after purchase of the meat products (e.g., transport time, handling, storage), (iv) temperature profiles in household refrigerators and (v) L. monocytogenes prevalence of the slicing machine and sliced RTE product. The Food Safety and Spoilage Predictor model was validated against observed L. monocytogenes growth in non‐prepackaged RTE cooked meat products at different static and dynamic temperature conditions simulating domestic stage. The data and validated model were used to develop a quantitative microbial risk assessment (QMRA) model predicting the listeriosis risk related to the consumption of these meat products handled at retail stores in Greece. The probability of illness per serving was found highly related to the NaNO2 concentration; products having a lower concentration showed a higher risk per serving. A sensitivity analysis showed that the prevalence and initial concentration of L. monocytogenes immediately after slicing as well as the temperature and duration of storage in the domestic refrigerator had the highest impact on the probability of illness per serving. A median number of seven listeriosis cases per year was predicted for the total population upon consumption of these products handled at retail food service environments in Greece. The predicted 95th percentiles of the listeriosis cases totaled 33 of which 13 cases were