Table 1.
Total phenolics, flavonoids and flavonols content together with in vitro antioxidant capacity in peels, flowers and leaves of Nabli and Gabsi Tunisian pomegranate cultivars
| Total phenolics (mg GAE 100 g−1 DW) | Flavonoids (mg RE 100 g−1 DW) | Flavonols (mg RE 100 g−1 DW) | DPPH (mg GAE 100 g−1 DW) | FRAP (mg GAE 100 g−1 DW) | |
|---|---|---|---|---|---|
| Nabli | |||||
| Peels | 121.7 ± 16.6b | 13.4 ± 1.6c | 21.7 ± 0.9c | 128.5 ± 9.7b | 101.4 ± 10.6bc |
| Flowers | 158.4 ± 13.8c | 9.1 ± 0.6b | 7.7 ± 0.4b | 161.6 ± 4.3d | 122.1 ± 12.0de |
| Leaves | 79.7 ± 2.7a | 5.5 ± 0.9a | 4.0 ± 0.3a | 110.6 ± 8.4a | 63.8 ± 9.2a |
| Gabsi | |||||
| Peels | 129.0 ± 26.7b | 19.2 ± 1.1d | 26.0 ± 1.4d | 144.4 ± 4.5c | 124.9 ± 7.7e |
| Flowers | 111.4 ± 10.9b | 6.5 ± 1.0a | 4.7 ± 0.1a | 136.2 ± 6.3bc | 112.9 ± 1.2cd |
| Leaves | 118.9 ± 12.5b | 6.2 ± 0.9a | 4.3 ± 0.4a | 113.1 ± 6.9a | 99.8 ± 7.8b |
The data are presented as gallic acid or rutin equivalents (GAE and RE) 100 g−1 dry weight (DW) and reported as mean values ± standard deviation (n = 5); superscript letters within each column (considering both cultivars) indicate homogenous sub-classes as resulted from ANOVA (p < 0.01, Duncan’s post hoc test)