Table 4.
Measurement of inhibition zone diameter, Minimum Inhibition Concentration MIC, and Minimum Bactericidal Concentration of Opuntia ficus-indica seed oil.
| Microbial Species | Zone of Inhibition (mm, Mean ± SEM) | MIC (µg/mL) |
MBC (µg/mL) | * Oxytetracycline 30 mg |
* Penicillin 10 mg |
|---|---|---|---|---|---|
| S. aureus | 17.3± 0.4 |
20 | 25 | ND | _____ |
| B. subtilis | 14.4 ± 0.5 |
25 | 35 | 5.1 ± 0.5 |
_____ |
| E. coli | 21.2 ± 0.2 |
15 | 20 | 17.0 ± 0.3 |
_____ |
| K.pneumoniae | 18.3 ± 0.4 |
20 | 25 | ND | _____ |
| S. cerevisiae | 28.3 ± 0.4 |
10 | 15 | 9.2 ± 0.6 |
_____ |
| Asp.niger | ND | ND | ND | ND | ND |
| Pen.digitatum | 9.4 ± 0.5 | 35 | 40 | _____ | 4.4 ± 0.5 |
* (OT30) and (P10) were used as positive controls: ND; Not detected.