Table 1.
Phytochemical characterization and antioxidant capacity of the extracts.
| Parameters/Fractions | Whole Methanolic Extract | Anthocyanin-Enriched Fraction |
|---|---|---|
| Phytochemical Characterization | ||
| Total polyphenols (mg GAeq/g DW) | 23.44 ± 0.22 b | 531.99 ± 2.01 a |
| Flavonoids (mg CATeq/g DW) | 5.21 ± 0.29 b | 247.22 ± 2.56 a |
| TAC (µmol Txeq/g DW) | ||
| FRAP | 168.25 ± 3.95 b | 4400 ± 11.43 a |
| DPPH | 30.29 ± 0.18 b | 1590 ± 3.54 a |
| TEAC | 35.51 ± 0.06 b | 167.58 ± 2.64 a |
mg GAeq/g DW: mg of gallic acid equivalent/g of the dried weight (DW) of the fraction. mg CATeq/g DW: mg of catechin equivalent/g of the dried weight (DW) of the fraction. µmol Txeq/g DW: µmol of Trolox equivalent/g of the dried weight (DW) of the fraction. FRAP: ferric-reducing antioxidant power assay. DPPH: 2,2-diphenyl-1-picrylhydrazyl free radical method. TEAC: trolox equivalent antioxidant capacity assay; TAC, total antioxidant capacity. Different superscripts letter for each column indicated significant differences (p < 0.05).