Table 3.
Antibacterial activity of the essential oil and methanol extract of Zanthoxylum alatum.
| Microorganism | Zone of inhibition (mm) | MIC (μg/mL) | ||
|---|---|---|---|---|
| Essential oila | MeOH extractb | CF | Essential oil | |
| B. subtilis MTCC2389 | 15 | — | 19 | 500 |
| M. luteus MTCC4821 | 21 | — | 20 | 62.5 |
| S. aureus MTCC7443 | 19 | — | 21 | 125.5 |
| E. coli MTCC2127 | 18 | — | 24 | 250 |
| P. aeruginosa MTCC2642 | 7 | — | 18 | >1000 |
Diameter of inhibition zone includes the diameter of the well (6 mm); aessential oil (2 μL well−1); bMeOH extract (2 mg well−1); standard antibiotic: CF: chloramphenicol (10 μL well−1); MIC: minimum inhibitory concentration. —: not detected.