Table 8.
Direct and indirect activity of the major compounds of the essential oils tested (n = 3). In bold, the most promising results.
| Minimum Inhibitory Activity (MIC, μg/mL) | ||||||||
|---|---|---|---|---|---|---|---|---|
| S. aureus LMG 15975 | ||||||||
| EO | Direct Activity | Indirect Activity | ||||||
| % of the Compound in the EO |
EO Compound |
EO | EO Compound | EO | ||||
| Sub-MIC + | PEN V * | Sub-MIC + | PEN V * | |||||
| AW | Thymol | 45.17 | 250 | 500 | 62..5 + | 0.125 | 125 + | 0.5 |
| BE | Estragole | 87.58 | >1000 | >1000 | 500 + | 2 | 500 + | 2 |
| CA | E-β-farnesene | 34.61 | >1000 | >1000 | 500 + | 0.06 | 500 + | 0.125 |
| CC | E-cinnamaldehyde | 82.05 | 250 | 250 | 62.5 + | 4 | 62.5 + | 1 |
| CF | 2-decenal | 11.07 | 250 | 125 | 62.5 + | 0.06 | 31.3 + | 2 |
| GF | Eugenol | 84.58 | 1000 | 1000 | 250 + | 1 | 250 + | 0.125 |
| LG | Citral | 75.16 | 500 | 500 | 125 + | 0.06 | 125 + | 0.25 |
| LS | Camphor | 32.54 | >1000 | >1000 | 500 + | 1 | 500 + | 0.06 |
| OC | Carvacrol | 57.21 | 125 | 250 | 31.3 + | 0.5 | 62.5 + | 0.25 |
| PM | Geraniol | 81.05 | 1000 | 1000 | 250 + | 0.03 | 250 + | 0.06 |
* MIC PEN V alone = 4 μg/mL. AW—ajowan, BE—basil, CA—German chamomile, CC—Chinese cinnamon, CF—coriander, GF—clove, LG—lemongrass, LS—Spanish lavender, OC—oregano, PM—palmarosa, EO—essential oil, PEN V—penicillin V.