Compound | Inhibition zone diameter (mm) | |||
---|---|---|---|---|
Gram-positive bacteria | Gram-negative bacteria | |||
Staphylococcus aureus | Vibrio parahaemolyticus | Escherichia coli | Pseudomonas aeruginosa | |
Q1 (R = Cl) | 35 | 30 | 18 | – |
Q2 (R = OCH3) | 17 | 10 | – | – |
Q3 (R = NO2) | 13 | 10 | – | – |
Q4 (R = H) | 11 | 5 | – | – |
Penicillin G | 11 | 5 | 10 | 9 |