| compound | DPPH % (1) | AChE Inhibition % (1) | BuChE Inhibition % (1) | Tyrosinase Inhibition % (1) |
| DPPH % (2) | AChE Inhibition % (2) | BuChE Inhibition % (2) | Tyrosinase Inhibition % (2) | |
| 7-phloroeckol | 69.7 | 45.1 | 59.7 | 49.4 |
| 48.1 | 35.2 | 14.1 | 1.4 | |
| eckol | 76.8 | 99.0 | 97.8 | 67.9 |
| 58.4 | 40.9 | 48.6 | 13.3 | |
| dieckol | 67.5 | 97.2 | 99.5 | 91.3 |
| 59.5 | 72.3 | 96.2 | 29.3 | |
| PFF | 74.0 | 96.1 | 98.0 | 87.3 |
| 71.4 | 63.4 | 89.9 | 21.5 | |
| control | 93.0a | 99.4b | 85.0b | 96.1c |