Table 3.
Inhibitory concentration (IC) values (μg mL−1) obtained for the antioxidant activity of cyanobacteria ethanol extracts, for DPPH• and O2•− 1,2,3.
| Strains | DPPH• (μg mL−1) | O2•− (μg mL−1) | ||
|---|---|---|---|---|
| IC25 | IC50 | IC25 | IC50 | |
| Phormidium sp. LEGE 05292 | nd | nd | 626.54 ± 0.02 a,b | 822.70 ± 0.06 b |
| Synechocystis salina LEGE 06099 | 481.96 ± 0.09 b | 863.82 ± 0.17 | nd | nd |
| Nodosilinea nodulosa LEGE 06102 | 764.14 ± 0.16 a,b | 1077.59 ± 0.03 | nd | nd |
| Cyanobium sp. LEGE 06113 | nd | nd | nd | nd |
| Synechocystis salina LEGE 06155 | 929.76 ± 0.12 a | nd | 756.42 ± 0.74 a | 1275.86 ± 0.07 a |
| Cyanobium sp. LEGE 07175 | nd | nd | nd | nd |
| Tychonema sp. LEGE 07196 | nd | nd | 555.54 ± 0.09 b | 924.21 ± 0.07 b |
1 Mean ± SD of three independent experiments. 2 nd: Not determined. 3 Different superscript letters in the same column denote statistical differences at p < 0.05.