Table 3.
Percentage of DPPH scavenging activity and IC50 value of propolis water extracts.
| Propolis | Concentration of sample (mg/mL) | Absorbance | DPPH scavenging activity (%) | IC50 (mg/mL) |
|---|---|---|---|---|
| T. apicalis | 1 | 0.391 | 20.53 | 5.18 |
| 2 | 0.364 | 26.02 | ||
| 3 | 0.315 | 35.98 | ||
| 4 | 0.282 | 42.68 | ||
| 5 | 0.258 | 47.56 | ||
| T. binghami | 1 | 0.403 | 18.09 | 6.14 |
| 2 | 0.356 | 22.64 | ||
| 3 | 0.323 | 34.35 | ||
| 4 | 0.312 | 36.59 | ||
| 5 | 0.286 | 41.87 | ||
| H. fimbriata | 1 | 0.343 | 30.28 | 3.95 |
| 2 | 0.313 | 36.38 | ||
| 3 | 0.274 | 46.31 | ||
| 4 | 0.245 | 50.20 | ||
| 5 | 0.212 | 56.91 | ||
| Ascorbic acid | 1 | 0.355 | 19.17 | 5.08 |
| 2 | 0.333 | 24.25 | ||
| 3 | 0.275 | 37.19 | ||
| 4 | 0.245 | 42.13 | ||
| 5 | 0.227 | 48.22 | ||
| Blank | 0.439 | 0.00 |