| Antibiotics producing microorganisms | Minimum bactericidal concentration (MBC) (%) | |
| S. aureus | E. coli | |
| Providencia stuartii | 50 | 50 |
| Bacillus sp. | 50 | 50 |
| Providencia alcalifaciens | 50 | 50 |
| Aspergillus fumigatus | - | 25 |
| Aspergillus niger | - | 50 |