Table 3 Minimum bactericidal concentration (MBC) of synthesized nanoparticles and extract and extract of N. sessilifolia, S. hydrangea and antibiotics against microbial strains
strains | MBC (μg/mL) | |||||
|---|---|---|---|---|---|---|
AgNPs | Extract | Antibiotics | ||||
N. sessilifolia | S. hydrangea | N. sessilifolia | S. hydrangea | Rifampin | Gentamicin | |
Gram-negative bacteria | 250 | 1000 |  > 16,000 |  > 16,000 | 500 | 7.8 |
K. pneumoniae | ||||||
P. aeruginosa | 1000 | 2000 |  > 16,000 |  > 16,000 | 250 | 15.63 |
Gram-positive bacteria | 500 | 1000 |  > 16,000 |  > 16,000 | 3.9 | 7.8 |
S. aureus | ||||||
S. epidermidis | 250 | 1000 |  > 16,000 |  > 16,000 | 7.8 | 3.9 |