Table 3.
Results of total phenolic and flavonoid content and antioxidant activities of representative X. aethiopica samples from Ghana and Nigeria.
| Samples | Total Phenolic and Flavonoid Content | Antioxidant Activities | ||||
|---|---|---|---|---|---|---|
| TPC (mg GAE/g) | TFC (mg CE/g) | ABTS (mg/g db) | CUPRIC (mg/g db) | DPPH (mg/g db) | FRAP (mg/g db) | |
| G1 | 58.94 ± 8.54 a | 67.73 ± 3.39 ab | 18.15 ± 5.06 e | 32.44 ± 16.70 c | 89.20 ± 0.40 c | 66.84 ± 4.46 c |
| G2 | 67.34 ± 7.47 a | 77.39 ± 0.77 ab | 20.33 ± 3.95 e | 26.72 ± 3.36 c | 82.39 ± 0.33 d | 62.11 ± 3.77 cd |
| G3 | 49.61 ± 0.49 a | 65.46 ± 2.62 b | 36.70 ± 6.81 d | 36.96 ± 10.37 c | 83.73 ± 0.48 d | 55.57 ±10.08 d |
| N1 | 84.85 ± 5.32 ab | 90.03 ± 4.21 a | 46.40 ± 3.63 a | 60.35 ± 2.67 ab | 107.07 ± 0.81 a | 83.50 ± 4.09 b |
| N2 | 81.92 ± 7.96 bc | 95.59 ± 2.89 a | 39.53 ± 1.37 c | 79.89 ± 5.93 a | 99.53 ± 1.06 b | 87.27 ± 0.42 ab |
| N3 | 79.65 ± 5.08 c | 92.5 ± 3.9 a | 42.89 ± 4.04 b | 80.20 ± 6.27 a | 104.105 ± 0.82 a | 89.70 ± 3.09 a |
“G1, G2, G3”: samples from Ghana. “N1, N2, N3”: Samples from Nigeria. The superscript of the various letters on their respective values signify significant differences (p < 0.05).