Use of E-beam radiation to eliminate Listeria monocytogenes from surface mould cheese

Raquel Velasco, Juan A Ordóñez, M Isabel Cambero, M Concepción Cabeza
2015 International Microbiology  
Camembert and Brie soft cheese varieties were subjected to E-beam irradiation as a sanitation treatment. The effects of treatments on microbiota and selected physicochemical properties were also studied. The absorbed doses required to meet the food safety objective (FSO) according to EU and USDA criteria for Listeria monocytogenes were 1.27 and 2.59 kGy, respectively. The bacterial load, mainly lactic acid bacteria, was reduced by the treatment but injured cells were recovered during storage at
more » ... d during storage at 14°C. The radiation treatment gave rise to negligible changes in the pH and water activity at doses required to achieve microbial safety.
doi:10.2436/20.1501.01.232 pmid:26415665 fatcat:63kxrtwq6jerzin7ulduapme6i