Table 3. ZOI, MIC, and MBC of essential oil from C. rotundus rhizomes.
| Bacterial strains | ZOI (mm)a | MIC (mg/mL) | MBC (mg/mL) |
|---|---|---|---|
| Gram-positive | |||
| S. aureus | 22.3 ± 1.9 a | 10 | 20 |
| S. epidermidis | 21.5 ± 1.2 a | 20 | 40 |
| B. subtilis | 24.4 ± 1.5 a | 10 | 20 |
| Gram-negative | |||
| S. yphimurium | 16.3 ± 1.1 b | 40 | 40 |
| E. coli | 10.5 ± 0.8 c | >40 | NTb |
| S. ysenteriae | 15.4 ± 1.3 b | 40 | 40 |
aValues represent means of three independent replicates ± SD.
bNT, not tested. Different letters within a column indicate statistically significant differences between the means (p < 0.05) for ZOI.