Abstract
The aim of the study was to investigate the safe cooking parameters to eliminate E.coli O157:H7 in commonly consumed meatball types, by simulating the meatball formula and the cooking practices of restaurants. Ground meat was inoculated around 7 ± 1 log cfu/g with a cocktail of 5 strains of E.coli O157:H7. The meatballs were prepared with different ingredients and seasonings depending on the type (kasap or İnegöl). The cooking experiments were conducted on a grill, at two different temperatures, 170 and 180 °C. Results show that, in order to achieve ≥ 5 log destruction of E.coli O157:H7 in Kasap and İnegöl meatballs cooked at 170 °C, the internal temperature should reach to 85 °C. On the other hand, when the meatballs were grilled at 180 °C, 5 log reductions were achieved by cooking the meatballs to an internal temperature of 80 °C for Kasap meatballs and 85 °C for İnegöl meatballs. Differences in the meatball formulation and shape affected the thermal destruction of E.coli O157:H7. Measuring of the grill temperature and core temperature of meatballs during cooking and reaching the target temperatures for each type of meatball would help prevent Shiga toxin-producing E.coli (STEC) infections in public eating establishments.
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Data availability statement
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Abbreviations
- E. coli:
-
Escherichia coli
- STEC:
-
Shiga toxin-producing E. coli
- USDA:
-
U.S. Department of Agriculture
- FSIS:
-
Food safety and inspection service
- ATCC:
-
American Type Culture Collection
- RSKK:
-
Refik saydam culture collection
- PBS:
-
Phosphate buffered saline
- SMAC:
-
Sorbitol MacConkey Agar
- GLM:
-
General linear models
- SAS:
-
Statistical analysis system
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AD, responsible for conceiving the idea, supervised the work, edited the manuscript. SBB wrote the manuscript. OT and SBB carried out the experiments. OT performed statistical analysis. AD, SBB and OT revised the manuscript.
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Tosuncuk, Ö., Bozatli, S.B. & Dikici, A. Investigation of efficient thermal inactivation parameters of Escherichia coli O157:H7 in meatballs by grilling. J Food Sci Technol 60, 1731–1737 (2023). https://doi.org/10.1007/s13197-023-05710-6
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DOI: https://doi.org/10.1007/s13197-023-05710-6