| Brown algae | H-ORAC valuesa |
| (µmol-TE/g) | |
| Eisenia species |
|
| E. bicyclis | 1.0 × 104 |
| E. arborea | 9.7 × 103 |
| Ecklonia species |
|
| E. cava | 9.7 × 103 |
| E. kurome (natural plant from Fukuoka) | 9.6 × 103 |
| E. kurome (natural plant from Kumamoto) | 9.6 × 103 |
| E. kurome (cultured plant) | 8.9 × 103 |