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Correlation coefficients (r2values) of total polyphenol, flavonoid, and condensed tannins concentration, with DPPH activity expressed as IC50 values TAC expressed as mg of antioxidant /g of extract.
| Correlation | R 2 |
|---|---|
| DPPH versus Polyphenols | 0.722 |
| DPPH versus Flavonoids | 0.712 |
| DPPH versus Tannins | 0.710 |
| TAC versus Polyphenols | 0.679 |
| TAC versus Flavonoids | 0.420 |
| TAC versus Tannins | 0.685 |
