Table 2. Total phenolic content and antioxidant capacity of the crude extracts obtained from marine endophytic fungi associated with Halopteris scoparia.
| Fungal producers | TPCa | DPPHb | FRAPc | ORACd |
|---|---|---|---|---|
| Aspergillus chevalieri (isolate 13) | 402.9 ± 42.0 | 35.5 (32.5–38.8) | 3256.1 ± 174.3 | 19870.6 ± 1275.8 |
| Aspergillus chevalieri (isolate 20) | 191.2 ± 9.4 | 39.7 (34.3–46.0) | 509.5 ± 36.5 | 1319.6 ± 198.5 |
| Penicillium sizovae | 33.0 ± 1.3 | >200 | 498.6 ± 22.2 | 2058.9 ± 284.5 |
| Penicillium sect. Exilicaulis | 28.8 ± 2.4 | >200 | 452.8 ± 68.3 | 1070.9 ± 81.0 |
| Diaporthe sp. | 20.2 ± 1.7 | >200 | 215.2 ± 10.1 | 2823.0 ± 118.6 |
| Nigrospora oryzae (taxon 2) | 18.0 ± 1.4 | >200 | 263.6 ± 9.5 | 2766.5 ± 313.2 |
| Nigrospora oryzae (taxon 89) | 31.0 ± 0.9 | >200 | 494.8 ± 27.0 | 2814.1 ± 226.7 |
| Fusarium incarnatum-equiseti complex | 49.5 ± 2.6 | >200 | 280.8 ± 43.1 | 2579.9 ± 151.6 |
| Arthrinium arundinis | 8.1 ± 0.6 | >200 | 33.2 ± 3.7 | 441.4 ± 42.5 |
| Stemphylium gracilariae | 22.7 ± 3.6 | >200 | 70.7 ± 7.2 | 870.4 ± 107.2 |
| BHT | - | 164.5 (142.7–189.7) | 2821.5 ± 51.5 | 142.9 ± 8.7 |
a Gallic acid equivalents per g extract (mg GA/g);
b Radical scavenging activity (EC50 μg/mL);
c FeSO4 equivalents per g extract (μM FeSO4/g);
d Trolox equivalents per g extract (μmol TE/g). EC50 values were determined for a 95% confidence interval. The synthetic antioxidant butylated hydroxytoluene (BHT) was used as a reference compound.