Table 2.
Antioxidant activity of purified phycobiliproteins and methanol extracts from the Atacama native cyanobacterial strains CAQ-15, LLC-10 and LLA-10. The antioxidant capabilities were evaluated by the ABTS and FRAP assays and expressed as TEAC (Trolox equivalent antioxidant capacity). TE: Trolox equivalents; PE: Phycoerythrin; and PC: Phycocyanin. The assays were conducted in triplicate, and the results are shown as the mean values with the corresponding standard deviation.
| Sample | ABTS | FRAP |
|---|---|---|
| Methanol extract | µmoles TE/100 g fresh biomass | |
| CAQ-15 | 717 ± 61 | 50.23 ± 1.64 |
| LLC-10 | 641 ± 95 | 12.63 ± 0.73 |
| LLA-10 | 195 ± 38 | 13.14 ± 1.52 |
| Phycobiliprotein | µmoles TE/100 mg phycobiliprotein | |
| PE-CAQ-15 | 198 ± 45 | 0.92 ± 0.15 |
| PC-CAQ-15 | 312 ± 56 | 1.55 ± 0.10 |
| PC-LLA-10 | 205 ± 41 | 2.50 ± 0.15 |