Table 3 Antibacterial activity of different concentrations of aqueous/ethanol A. cepa extracts
Test bacteria | Diameter of inhibition zone (mm) of different concentration | |||||
|---|---|---|---|---|---|---|
150 mg/ml | 100 mg/ml | 50 mg/ml | ||||
Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | |
1. Escherichia coli | 5.7 | 10 | 4.2 | 8 | 0 | 0 |
2. Staphylococcus aureus | 5.2 | 14 | 4.0 | 6 | 0 | 0 |
3. Pseudomonas aeruginosa | 5.0 | 9 | 3.5 | 6 | 0 | 0 |
4. Klebsiella pneumonia | 4.5 | 0 | 3.0 | 0 | 0 | 0 |
5. Proteus mirabilis | 0 | 6 | 4 | 4 | 0 | 0 |