Table 3.
Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against C. perfringens, C. botulinum and C. difficile. Values are expressed as means ± standard deviation.
| Microorganism | SPEA (mg/mL) | SPEB (mg/mL) | Benzylpenicillin (µg/mL) | |||
|---|---|---|---|---|---|---|
| MIC | MBC | MIC | MBC | MIC | MBC | |
| C. perfringens | 250 | 250 | 500 | 500 | 0.06 | 0.06 |
| C. botulinum | 250 | 500 | 500 | 500 | 0.5 | 0.5 |
| C. difficile | 250 | 250 | 500 | 500 | 1 | 1 |
SPEA = saffron petals extract A obtained by maceration under magnetic stirring (400 rpm); SPEB = saffron petals extract B obtained by under ultrasonic bath.