Table 5 Comparison of MZI among leaf extracts of O. integrifolia
From: Determination of antioxidant and antimicrobial activities of leaf extracts of Otostegia integrifolia
Extracts and standard antibiotics | Concentration in µg/mL | Average values of zone of inhibition | ||||
|---|---|---|---|---|---|---|
S. aurous | S. pyogens | E. coli | S. typhi | K. pneumoniae | ||
Methanol extract | 25 | 11.4 ± 0.29 | 14.6 ± 0.25 | 8.5 ± 0.09 | 9..3 ± 0.03 | 6.4 ± 0.21 |
50 | 11.7 ± 0.37 | 15.0 ± 0.36 | 9.7 ±0.59 | 9.9 ±0.16 | 7.6 ± 0.29 | |
75 | 12.2 ± 0.33 | 15.3 ± 0.33 | 11.1 ± 0.37 | 10.1 ± 0.04 | 10.3 ± 0.43 | |
100 | 13.5 ± 0.40 | 15.7 ± 0.26 | 13.9 ± 0.16 | 10.1 ±0.38 | 12.2 ± 1.03 | |
Ethyl acetate extract | 25 | 0 | 10.4 ±0.17 | 6.6 ± 0.12 | 6.4 ±0.05 | 12.6 ± 0.24 |
50 | 0 | 11.6 ± 0.34 | 7.1 ± 0.17 | 6.9 ± 0.16 | 13.4 ± 0.34 | |
75 | 0 | 15.5 ± 0.1 | 7.8 ± 0.29 | 8.6 ±0.28 | 14.8 ± 0.26 | |
100 | 0 | 17.1 ± 0.14 | 8.6 ± 0.21 | 9.4 ± 0.49 | 16.8 ± 0.41 | |
Petroleum ether extract | 25 | 0 | 0 | 0 | 0 | 0 |
50 | 0 | 0 | 0 | 0 | 0 | |
75 | 0 | 0 | 0 | 0 | 0 | |
100 | 0 | 0 | 0 | 0 | 0 | |
Standard antibiotics | Gen. | 24.5 ± 0.12 | 27.7 ± 0.08 | 25.0 ± 0.12 | 23.4 ±0.37 | 23.1 ±0.33 |
Chl. | 18.8 ± 0.21 | 31.4 ± 0.15 | 16.6 ± 0.17 | 15.5 ± 0.21 | 19.8 ±0.13 | |