Table 2.
Hydroxyl and Superoxide radical scavenging activity of sulfated polyssacharides from Sargassum filipendula.
| Sulfated polysaccharides | Concentration (mg/mL) |
Scavenging (%) |
|
|---|---|---|---|
| OH• | O2− | ||
| SF-0.5v | 0.05 | 0 ± 0 | 0 ± 0 |
| 0.10 | 0 ± 0 | 0 ± 0 | |
| 0.25 | 0 ± 0 | 0 ± 0 | |
| 0.50 | 0 ± 0 | 0 ± 0 | |
| SF-0.7v | 0.05 | 5.3 ± 3.5 a | 11.1 ± 0.4 a |
| 0.10 | 15.8 ± 2.9 b | 14.2 ± 0.4 b | |
| 0.25 | 23.0 ± 1.5 c | 16.3 ± 0.6 b | |
| 0.50 | 26.2 ± 1.8 c | 19.3 ± 0.7 b | |
| SF-1.0v | 0.05 | 10.8 ± 2.2 a | 0 ± 0 |
| 0.10 | 17.1 ± 2.9 b | 0 ± 0 | |
| 0.25 | 22.5 ± 1.5 c | 0 ± 0 | |
| 0.50 | 26.7 ± 1.8 c | 0 ± 0 | |
| SF-1.5v | 0.05 | 4.9 ± 0.9 a | 0 ± 0 |
| 0.10 | 9.2 ± 0.7 b | 0 ± 0 | |
| 0.25 | 12.4 ± 1.5 b | 0 ± 0 | |
| 0.50 | 12.7 ± 4.8 b | 0 ± 0 | |
| SF-2.0v | 0.05 | 0 ± 0 | 0 ±0 |
| 0.10 | 0 ± 0 | 5.0 ± 0.7 a | |
| 0.25 | 0 ± 0 | 9.0 ± 1.1 b | |
| 0.50 | 0 ± 0 | 12.2 ± 1.2 b | |
| Gallic acid | 0.05 | 11.6 ± 1,7 a | 28.9 ± 3.8 a |
| 0.10 | 43.6 ± 2.4 b | 41.8 ± 4.7 b | |
| 0.25 | 64.3 ± 3.0 c | 72.1 ± 2.9 c | |
| 0.50 | 93.7 ± 3.7 d | 86.3 ± 3.1 d | |
Each value is the mean ± SD of three determinations.
a,b,c,d
Different letters indicate a significant difference (p < 0.05) between each concentration of the same sulfated polysaccharide.