Table 4.
Inhibition zones of fractionated Poliomintha longiflora essential oil.
| Bacteria | Inhibition Zones (cm) | ||||||
|---|---|---|---|---|---|---|---|
| F1 | F2 | F3 | F4 | R | P-OEO | GE | |
| P. aeruginosa | 0.7 * ± 0.0 g | NI | 1.2 ± 0.2 ef | 1.4 ± 0.1 e | 1.0 ± 0.1 f | 0.7 ± 0.0 g | 1.7 ± 0.07 d |
| E. coli | 1.6 ± 0.3 de | 2.0 ± 0.3 cd | 2.9 ± 0.4 b | 3.8 ± 0.3 a | 2.6 ± 0.2 b | 3.3 ± 0.2 ab | 1.8 ± 0.1 d |
| P. vulgaris | 1.1 ± 0.1 f | 1.2 ± 0.2 ef | 2.3 ± 0.2 c | 2.4 ± 0.4 bc | 1.7 ± 0.3 d | 2.3 ± 0.4 c | 2.2 ± 0.2 c |
* Values of three repetitions ± standard deviation. Different letters between rows or columns (a–g) are significantly different. Fractions (F1–F4). Residual (R), Pure essential oil (P-OEO), positive control: Gentamicin (GE).