Table 1.
Screening results of DPPH radical scavenging activity of phenols 1–6 and prenylated phenols derivatives 8–33.
| Compound | IC50μM ± SD | Compound | IC50μM ± SD |
|---|---|---|---|
| 1 | 18.56 ± 1.55 | 18 | 45.36 ± 0.86 |
| 2 | NA | 19 | NA |
| 3 | 28.75 ± 2.46 | 20 | 35.63 ± 2.87 |
| 4 | 173.44 ± 5.12 | 21 | NA |
| 5 | 22.07 ± 0.02 | 22 | NA |
| 6 | NA | 23 | NA |
| 8 | 23.68 ± 0.34 | 24 | NA |
| 9 | 81.22 ± 4.75 | 25 | NA |
| 10 | 18.68 ± 1.48 | 26 | NA |
| 11 | 60.34 ± 3.04 | 27 | NA |
| 12 | 21.38 ± 1.80 | 28 | NA |
| 13 | 114.54 ± 3.02 | 29 | NA |
| 14 | 50.94 ± 4.29 | 30 | NA |
| 15 | 21.19 ± 1.39 | 31 | NA |
| 16 | 48.32 ± 1.14 | 32 | NA |
| 17 | 19.06 ± 1.69 | 33 | NA |
| Trolox™ | 22.04 ± 2.11 |
Antioxidant activity are shown as IC50 values in µM concentrations; NA = no activity. All compounds were analyzed in triplicate and the results expressed as average ± standard deviation.