Table 2.
Linear correlation coefficients between the contents of total flavonoids (TF), total phenolics (TP) and antioxidant activity of the extract
| Ethanol | Acetone | Methanol | ||||
|---|---|---|---|---|---|---|
| TAA | DPPH· | ABTS · + | DPPH· | ABTS · + | DPPH· | ABTS · + |
| TF | y = 1.62x−0.32 | y = 3.53x−0.47 | y = 1.47x−0.25 | y = 0.25x + 0.15 | y = 3.47x−0.66 | y = 1.57x−0.37 |
| R2 = 0.878 | R2 = 0.910 | R2 = 0.947 | R2 = 0.840 | R2 = 0.817 | R2 = 0.877 | |
| TP | y = 0.28x + 0.16 | y = 0.62x + 0.55 | y = 3.12x−0.56 | y = 0.59x + 0.26 | y = 0.89x + 0.02 | y = 0.59x + 0.07 |
| R2 = 0.801 | R2 = 0.819 | R2 = 0.852 | R2 = 0.902 | R2 = 0.913 | R2 = 0.949 | |