Table 3.
Correlation coefficients between each extract (TPC, TFC, and AA) and antioxidant activities
| Evaluation characteristics | DPPH | ABTS | Reducing power | TPC | TFC | AA |
|---|---|---|---|---|---|---|
| DPPH | 1 | – | – | – | – | – |
| ABTS | 0.568* | 1 | – | – | – | – |
| Reducing power | 0.458* | 0.595* | 1 | – | – | – |
| TPC | 0.147* | 0.384* | 0.535* | 1 | – | – |
| TFC | 0.149* | 0.388* | 0.547* | 0.794* | 1 | – |
| AA | 0.627* | 0.622* | 0.500* | 0.459* | 0.424* | 1 |
TPC total phenolic compounds, TFC total flavonoid compounds, AA ascorbic acid, DPPH 2,2-diphenyl-1-picrylhydrazyl, ABTS 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)
* p-value < 0.001