Table 3 Comparison of inhibition zones obtained by diffusion technique in agar with CMI and CMB of the essential oil of L. luisieri and the controls
Essential oil | Strains | Inhibition zone (mm) in cylindrical cavities | Inhibition zone (mm) in vapor diffusion tests | MIC (µg/mL) | MBC (µg/mL) | |
|---|---|---|---|---|---|---|
Concentration (mg/70 µL) | ||||||
Leaves | Escherichia coli | 17.9 ± 0.3 | 61.6 | 31 | 22,000 | 22,000 |
Staphylococcus aureus | SI | 40 | 11,000 | 11,000 | ||
Salmonella spp. | 8.9 ± 0.3 | 0 | 22,000 | 22,000 | ||
Flowers | Escherichia coli | 22.3 ± 0.2 | 61.6 | 30 | 22,000 | 22,000 |
Staphylococcus aureus | SI | 41 | 22,000 | 22,000 | ||
Salmonella spp. | 11.2 ± 0.2 | 0 | 22,000 | 22,000 | ||
Gentamicin | Escherichia coli | 24.2 ± 0.1 | 0.01 | – | – | – |
Staphylococcus aureus | 29.2 ± 0.1 | – | – | – | ||
Salmonella spp. | 24.2 ± 0.1 | – | – | – | ||
Penicillin G | Escherichia coli | 0.0 ± 0.0 | 0.0005 | – | – | – |
Staphylococcus aureus | 48.2 ± 0.1 | – | – | – | ||
Salmonella spp. | 0.0 ± 0.0 | – | – | |||
DMSO | Escherichia coli | 0.2 ± 0.1 | CS | – | – | – |
Staphylococcus aureus | 0.2 ± 0.1 | – | – | – | ||
Salmonella spp | 0.2 ± 0.1 | – | – | – | ||