Table 3.
DPPH radical scavenging activity of different solvent extracts of the endophytic A. baumannii.
| Endophytic bacteria | Solvent | % Inhibition | EC50 (μg/mL of extract) | ||||
|---|---|---|---|---|---|---|---|
| 62.5 μg/mL | 125 μg/mL | 250 μg/mL | 500 μg/mL | 1000 μg/mL | |||
| baumannii | CHL | -18.87±0.28c | -17.63±0.50c | -16.39±0.28c | -12.12±0.14b | -5.37±0.28b | 5626.28±112.20b |
| DEE | -2.30±0.21a | -1.42±0.29a | -0.09±0.21a | 1.84±0.08a | 6.70±0.21a | 4848.87±74.87a | |
| EA | -4.36±0.08b | -2.66±0.08b | -1.10±0.14b | 1.88±0.21a | 6.80±0.29a | 4738.51±101.81a | |
|
| |||||||
| Standard | |||||||
|
| |||||||
| Gallic Acid | 41.51±0.16 | 45.22±0.08 | 52.66±0.52 | 68.18±0.01 | 94.17±0.32 | 204.38±1.78 | |
|
| |||||||
| Ascorbic Acid | 30.85±0.24 | 35.40±0.41 | 45.50±0.42 | 63.50±0.55 | 96.42±0.01 | 325.44±2.06 | |
Results are shown as mean±SD (n=3).
Significant differences among the mean values of each column determined by Tukey's HSD test (P < 0.05) are indicated by different letters (a–c).