when any of these barriers acting alone inactivated less than 1.5 log10 cycles of either bacteria. Therefore, the synergismbetween lemon EO and the successive application of PEF and heatwould provide a safety level similar to that of ultrapasteurization treatment for Salmonella Senftenberg 775Wand L.monocytogenes, but at a lower temperature. To a lesser extent, synergismwith the successive application of PEF and heat was also observed in the presence of 200 μL/L of carvacrol, citral, (+)-limonene, or mandarin EO, reaching about 3.5 log10 cycles of inactivation in Salmonella Senftenberg and 3.0 log10 cycles in L. monocytogenes, respectively.