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Correlations between the TPC, ABTS, ORAC and ferulic acid content.
| TPC 1 | ABTS 1 | ORAC 1 | |
|---|---|---|---|
| ABTS | 0.81 | - | - |
| ORAC | 0.007 | 0.18 | - |
| Ferulic acid | 0.96 | 0.60 | 0.03 |
1 TPC = total phenolic content, ABTS = 2,2′-azino-bis-3-ethylbenzo-thiazoline-6-sulphonic acid, ORAC = 2 oxygen radical absorbance capacity.
