Table 3.
Inhibition zones of the plant extracts and AgNPs against Gram-positive and Gram-negative bacteria strains (p > 0.05).
Bacterial Strains | Inhibition Zone ± SD, mm: | ||||
---|---|---|---|---|---|
E. globulus | S. officinalis | EuG-AgNPs | SaO-AgNPs | ||
Gram-positive | S. aureus | 14.4 ± 0.01 d | 17.9 ± 0.20 c | 20.0 ± 0.10 b | 24.4 ± 0.05 a |
B. cereus | 13.2 ± 0.05 d | 15.7 ± 0.70 c | 20.4 ± 0.08 b | 24.0 ± 0.10 a | |
P. vulgaris | 14.7 ± 0.10 c | 13.2 ± 0.55 d | 18.2 ± 0.09 b | 20.0 ± 0.22 a | |
B. subtilis | 14.0 ± 0.01 c | 13.1 ± 0.01 d | 20.0 ± 0.20 a | 18.8 ± 0.18 b | |
Gram-negative | E. coli | 14.0 ± 0.02 c | 13.9 ± 0.01 d | 19.0 ± 0.01 b | 22.4 ± 0.03 a |
P. aeruginosa | 13.8 ± 0.01 c | 13.0 ± 0.10 d | 20.1 ± 0.03 b | 20.9 ± 0.27 a | |
K. pneumoniae | 13.6 ± 0.04 c | 13.2 ± 0.25 d | 21.5 ± 0.01 b | 23.0 ± 0.14 a | |
P. mirabilis | 12.5 ± 0.08 d | 12.8 ± 0.10 c | 19.7 ± 0.10 b | 20.7 ± 0.40 a |
The different superscript letters in the same line indicate statistically significant differences between Gram-positive and Gram-negative bacteria strains of plant extracts (p < 0.05).