Table 3 Inhibition zone diameters of methanol extract of S. platensis and green synthesized ZnO NPs versus tested
Microorganisms | Inhibition Zone diameters (mm) | ||
|---|---|---|---|
Green synthesized ZnO NPs | Tetracycline | ||
10 µg/mL | 20 µg/mL | 20 µg/mL | |
Gram-Positive Bacteria | Â | Â | Â |
S. aureus | 15.47 ± 0.25Ab | 17.33 ± 0.06Aa | 17.63 ± 0.12Aa |
S. pyogenes | 13.53 ± 0.35Bc | 14.57 ± 0.06Bb | 15.23 ± 0.06Ba |
Gram-Negative Bacteria | Â | Â | Â |
S. typhi | 10.47 ± 0.06Dc | 12.57 ± 0.06Cb | 13.23 ± 0.15Ca |
K. pneumoniae | 11.43 ± 0.12Cc | 14.57 ± 0.06Bb | 15.07 ± 0.06Ba |