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Zones of growth inhibition (mm; mean ± standard deviation) with the DDA (disk diffusion assay), minimal inhibitory concentration (MIC) and minimal bactericide concentration (MBC) of garlic and oregano essential oils against Salmonella spp. and L. monocytogenes.
| Essential Oil | Assay | Listeria monocytogenes | Salmonella spp. |
|---|---|---|---|
| garlic | DDA (mm) | 10.5 ± 1.6 | 15.03 ± 2.6 |
| MIC (%) | 2 | 0.0125 | |
| MBC (%) | 4 | 2 | |
| oregano | DDA (mm) | 46.5 ± 3.2 | 36.4 ± 1.3 |
| MIC (%) | 0.005 | 0.005 | |
| MBC (%) | >0.005 | >0.005 |
