Table 2.
The MIC and MBC Values Against the Tested Bacteria by the Microdilution Method
| Bacterial Species | Number of Strains | MIC* (mg/ml) | MBC† (mg/ml) | MBC: MIC Ratio | AntibacterialMode | Positive Control Streptomycinmg/ml | |
|---|---|---|---|---|---|---|---|
| MIC | MBC | ||||||
| Staphylococcus aureus | 2 (clinical isolate) | 100 | 400 | 4: 1 | Bacteristatic | 0.065 | 0.104 |
| S. aureus | 1 (ATCC 29247 stain) | 100 | 400 | 4: 1 | Bacteristatic | 0.06 | 0.1 |
| MRSAa | 1 (clinical isolate) | 100 | 400 | 4: 1 | Bacteristatic | -b | - |
| Bacillus subtilis | 1 (clinical isolate) | 100 | 200 | 2: 1 | Bactericidal | 0.04 | 0.08 |
| Escherichia coli | 1(clinical isolate) | 100 | 200 | 2: 1 | Bactericidal | 0.05 | 0.1 |
| E.coli | 1 (ATCC 25922 strain) | 100 | 400 | 4: 1 | Bacteristatic | 0.045 | 0.09 |
| E.coli | 1 (ATCC 35218 strain) | 300 | 400 | 1.3: 1 | Bactericidal | 0.042 | 0.08 |
| E.coli O157:H7 | 1 (isolate) | 200 | 400 | 2: 1 | Bactericidal | 0.049 | 0.09 |
| Pseudomonas aeruginosa | 1 (clinical isolate) | 100 | 200 | 2: 1 | Bactericidal | 0.047 | 0.08 |
| Klebsiella pneumoniae | 1 (clinical isolate) | 100 | 400 | 4: 1 | Bacteristatic | 0.05 | 0.085 |
| Salmonella enterica serovar Typhimurium | 1 (ATCC 25241 strain) | 400 | 500 | 1.25: 1 | Bactericidal | 0.048 | 0.082 |
*
: minimum inhibitory concentration
†
: minimum bactericidal concentration
a
: Methicillin-resistant Staphyloccocus aureus
b
: (-) means no growth inhibition detected.