Table 2.
Antioxidant activity of Bifurcaria bifurcata epiphytic bacteria. The results are the mean ± SEM of four independent experiments. TPC, total phenolic content; GAE, gallic acid equivalents; DPPH, 2,2-diphenyl-1-picrylhydrazyl; ORAC, oxygen radical absorbance capacity; TE, trolox equivalents; BHT, butylated hydroxytoluene.
| Epiphytic Bacteria | TPC (mg GAE/g Extract) | DPPH Radical Scavenging Activity IC50 (µg/mL) | ORAC (µmol TE/g Extract) | |
|---|---|---|---|---|
| 1 | 3.040 ± 0.32 | >1000 | 417.245 ± 9.44 | |
| 2 | 7.120 ± 0.05 | >1000 | 43.220 ± 6.41 | |
| 3 | 2.080 ± 0.19 | >1000 | 254.218 ± 6.47 | |
| 4 | 1.352 ± 0.09 | >1000 | 154.985 ± 3.04 | |
| 6 | 2.923 ± 0.05 | >1000 | 242.595 ± 6.68 | |
| 8 | 14.222 ± 4.25 | 164.40 (109.40–247.10) | 912.621 ± 23.79 | |
| 9 | 4.870 ± 0.02 | >1000 | 34.420 ± 1.63 | |
| 10 | 6.090 ± 0.07 | >1000 | 20.400 ± 4.99 | |
| 11 | 6.530 ± 0.05 | 183.80 (118.50–285.20) | 31.220 ± 2.06 | |
| 12 | 2.540 ± 0.30 | >1000 | 215.289 ± 7.46 | |
| 13 | 9.750 ± 0.04 | >1000 | 33.950 ± 4.40 | |
| 14 | 5.990 ± 0.06 | >1000 | 47.950 ± 5.77 | |
| 15 | 5.390 ± 0.07 | >1000 | 29.370 ± 2.62 | |
| 16 | 53.854 ± 3.02 | 20.21 (14.41–28.34) | 3603.659 ± 53.38 | |
| 17 | 6.470 ± 0.09 | >1000 | 44.250 ± 2.28 | |
| 18 | 1.633 ± 0.19 | >1000 | 202.810 ± 4.75 | |
| 20 | 7.140 ± 0.01 | >1000 | 52.110 ± 8.20 | |
| 21 | 1.668 ± 0.06 | >1000 | 131.556 ± 2.36 | |
| 22 | 0.878 ± 0.06 | >1000 | 119.415 ± 3.05 | |
| 23 | 2.035 ± 0.15 | >1000 | 561.990 ± 12.69 | |
| 24 | 3.220 ± 0.25 | >1000 | 407.490 ± 5.39 | |
| 25 | 9.380 ± 0.06 | >1000 | 42.720 ± 4.08 | |
| 26 | 5.656 ± 0.13 | 521.00 (366.90–739.70) | 520.917 ± 14.13 | |
| 27 | 2.640 ± 0.01 | >1000 | 12.210 ± 0.68 | |
| 28 | 1.848 ± 0.21 | >1000 | 149.545 ± 5.53 | |
| 29 | 1.117 ± 0.13 | >1000 | 67.211 ± 0.99 | |
| 30 | 3.502 ± 0.12 | >1000 | 68.979 ± 0.93 | |
| 31 | 8.556 ± 1.89 | >1000 | 692.260 ± 13.61 | |
| 32 | 1.963 ± 0.21 | >1000 | 201.190 ± 4.99 | |
| 34 | 2.220 ± 0.16 | >1000 | 204.646 ± 1.89 | |
| 35 | 2.770 ± 0.04 | >1000 | 358.226 ± 14.32 | |
| 36 | 10.376 ± 1.58 | 587.70 (442.00–781.40) | 129.665 ± 0.91 | |
| 38 | 5.340 ± 0.07 | >1,000 | 55.290 ± 3.11 | |
| 39 | 7.150 ± 0.03 | 23.62 (19.45–28.68) | 36.100 ± 4.69 | |
| 40 | 5.900 ± 0.02 | >1000 | 71.000 ± 15.49 | |
| 44 | 3.772 ± 0.44 | >1000 | 97.450 ± 2.11 | |
| 50 | 4.106 ± 0.02 | >1000 | 33.120 ± 0.42 | |
| 51 | 1.586 ± 0.89 | >1000 | 246.910 ± 9.97 | |
| 13B | 4.270 ± 0.02 | >1000 | 18.880 ± 0.24 | |
| BHT | - | 40.55 (27.39–60.05) | - |