Table 3.
Minimum inhibitory concentration (MIC) values of tested EOs and the mixture, expressed as both percentage and mg/mL, against selected Salmonella Enteritidis, Salmonella Typhimurium and Saccharomyces cerevisiae isolates.
| Bacterial Strain | Essential Oil | Chloramphenicol | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aloysia triphylla | Cinnamomum zeylanicum | Cymbopogon citratus | Litsea cubeba | Mentha piperita | Syzygium aromaticum | Mixture | |||||||||
| % | mg/mL | % | mg/mL | % | mg/mL | % | mg/mL | % | mg/mL | % | mg/mL | % | mg/mL | µg/mL | |
| S. Enteritidis 217 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 1.25 | 2.637 | 0.15 | 0.644 | 8 |
| S. Enteritidis 218 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.3 | 0.659 | 0.15 | 0.644 | 6 |
| S. Enteritidis 219 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.3 | 0.659 | 0.15 | 0.644 | 6 |
| S. Enteritidis 220 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.3 | 0.659 | 0.15 | 0.644 | 7 |
| S. Enteritidis 221 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 5 | 9.12 | 0.6 | 1.318 | 0.15 | 0.644 | 8 |
| S. Enteritidis 232 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.6 | 1.318 | 0.15 | 0.644 | 7 |
| S. Enteritidis 233 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.15 | 0.329 | 0.07 | 0.322 | 7 |
| S. Enteritidis 234 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.15 | 0.329 | 0.07 | 0.322 | 7 |
| S. Enteritidis 236 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.07 | 0.164 | 0.07 | 0.322 | 5 |
| S. Typhimurium 240 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 1.25 | 2.637 | 0.3 | 1.289 | 6 |
| S. Typhimurium 241 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.6 | 1.318 | 0.3 | 1.289 | 6 |
| S. Typhimurium 245 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.6 | 1.318 | 0.3 | 1.289 | 8 |
| S. Typhimurium 250 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.3 | 0.659 | 0.3 | 1.289 | 7 |
| S. Typhimurium 251 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 5 | 8.85 | 5 | 9.12 | 0.07 | 0.164 | 0.3 | 1.289 | 5 |
| S. Typhimurium 252 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 0.3 | 0.659 | 0.15 | 0.644 | 6 |
| S. Typhimurium 258 | 10 | 17.1 | 0.3 | 0.63 | 10 | 17.9 | 5 | 8.85 | 10 | 18.24 | 0.07 | 0.164 | 0.15 | 0.644 | 6 |
| S. Typhimurium 261 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 5 | 9.12 | 0.15 | 0.329 | 0.3 | 1.289 | 7 |
| S. Typhimurium 176 | 10 | 17.1 | 0.6 | 1.26 | 10 | 17.9 | 10 | 17.7 | 10 | 18.24 | 1.25 | 2.637 | 0.3 | 1.289 | 5 |
| S. cerevisiae | 5 | 8.55 | 10 | 20.2 | 7.5 | 13.42 | 7.5 | 13.27 | 10 | 18.24 | ne | ne | 0.20 * | ||
Legend—ne: not effective; *: 5-fluorocytosine; Mixture: Cinnamomum zeylanicum and Syzygium aromaticum.