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Correlation matrix between the parameters describing the polyphenolic content (total flavonoids (TF), total polyphenols (TP) and condensed tannins (CT)), and the results of the antioxidant tests.
| TF | TP | CT | ABTS | DPPH | FRAP | EC20 | |
|---|---|---|---|---|---|---|---|
| TF | 1 | ||||||
| TP | 0.977 | 1 | |||||
| CT | 0.953 | 0.986 | 1 | ||||
| ABTS | 0.973 | 0.982 | 0.991 | 1 | |||
| DPPH | 0.960 | 0.983 | 0.967 | 0.953 | 1 | ||
| FRAP | 0.980 | 0.985 | 0.986 | 0.989 | 0.978 | 1 | |
| EC20 | −0.851 | −0.908 | −0.914 | −0.895 | −0.905 | −0.904 | 1 |
