Table 6.
The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of essential oils from immature leaves of B. balsamifera extracted by hydrodistillation at the period of 0–6 hrs and 12–18 hrs against in vitro growth of S. aureus, E. coli, and P. aeruginosa.
| Period time | No. of repetitions | MICs of the extracts against the tested strains (mg/mL) | MBCs of the extracts against the tested strains (mg/mL) | ||||
|---|---|---|---|---|---|---|---|
| S. aureus | E.coli | P. aeruginosa | S. aureus | E.coli | P. aeruginosa | ||
| 0–6 hrs | 1 | 0.5 | >5 | >5 | 1 | >5 | >5 |
| 2 | 0.5 | >5 | >5 | 1 | >5 | >5 | |
| 3 | 0.5 | >5 | >5 | 1 | >5 | >5 | |
|
| |||||||
| 12–18 hrs | 1 | 1 | >5 | >5 | >5 | >5 | >5 |
| 2 | 1 | >5 | >5 | >5 | >5 | >5 | |
| 3 | 1 | >5 | >5 | >5 | >5 | >5 | |