Table A2.
Antibacterial activities of SEO and the major monomers.
| E. coli | P. aeruginosa | S. aureus | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIC | Mean a | SD | MBC | Mean | SD | MIC | Mean | SD | MBC | Mean | SD | MIC | Mean | SD | MBC | Mean | SD | |
| Essential oil | 6.4 | 0.15 | 0.126 | 12.8 | 0.06 | 0.016 | 0.2 | 0.03 | 0.005 | 0.2 | 0.03 | 0.005 | 0.2 | 0.161 | 0.007 | 0.4 | 0.045 | 0.01 |
| α-Pinene | 12.8 | 0.13 | 0.028 | >12.8 | - | - | 6.4 | 0.287 | 0.085 | 12.8 | 0.074 | 0.062 | 6.4 | 0.041 | 0.007 | 6.4 | 0.041 | 0.007 |
| α-Terpineol | 6.4 | 0.027 | 0.002 | 6.4 | 0.027 | 0.002 | 3.2 | 0.075 | 0.04 | 6.4 | 0.032 | 0.012 | 6.4 | 0.034 | 0.002 | 6.4 | 0.034 | 0.002 |
| Terpinolene | >12.8 | - | - | >12.8 | - | - | >12.8 | - | - | >12.8 | - | - | 6.4 | 0.065 | 0.009 | 6.4 | 0.065 | 0.009 |
| Verbenone | 12.8 | 0.119 | 0.032 | >12.8 | - | - | >12.81.6 | - | - | >12.8 | - | - | 3.2 | 0.08 | 0.013 | 3.2 | 0.08 | 0.013 |
| Mixture b | 1.6 | 0.069 | 0.009 | 3.2 | 0.069 | 0.009 | - | 0.034 | 0.001 | 1.6 | 0.034 | 0.001 | 1.6 | 0.039 | 0.008 | 1.6 | 0.039 | 0.008 |
| Tetracycline c | - | - | - | <0.05 | 0.032 | 0.002 | - | - | <0.05 | 0.032 | 0.002 | - | - | - | <0.05 | 0.037 | 0.007 | |
a Mean value of absorbance. b Mixture consists of α-pinene, α-terpineol, terpinolene, and verbenone (m:m:m:m =1:1:1:1). c Tetracycline hydrochloride was used as positive control for inhibiting bacteria. -, not tested.