Table 3.
Antimicrobial activity (minimum inhibitory concentration (MIC), μg/mL) of Ocimum forskolei and Teucrium yemense leaf essential oils.
| Organism | EOOF a | EOTY-t b | Positive Control |
|---|---|---|---|
| S. aureus | 4300 | 156 | 0.61 e |
| MRSA | 8600 | nt c | <10.0 f |
| B. cereus | nt | 156 | 1.22 e |
| B. subtilis | 4300 | nt | <10.0 e |
| E. coli | na d | 313 | 1.22 e |
| P. aeruginosa | na | 1250 | 2.44 e |
| C. albicans | 8600 | 1250 | 0.61 g |
| A. niger | nt | 313 | 0.61 g |
| B. cinerea | nt | 313 | <19.5 g |
a Antimicrobial activity of O. forskolei essential oil determined using the disc diffusion assay; b Antimicrobial activity determined using the broth dilution assay on T. yemense Taiz (2012) essential oil; c “nt” = not tested; d “na” = not active (no zone of inhibition); e Bacterial positive control, gentamicin sulfate; f MRSA positive control, enoxacin; g Fungal positive control, amphotericin B.