Table 4.
Correlation analysis of antioxidant components and activities.
| Factorsa | ABTS | DPPH | TP | Homogentisic acid | Salicylic acid | Kaempferol | ROS |
|---|---|---|---|---|---|---|---|
| ABTS | 1.000 | −0.127 | −0.921∗∗ | −0.764 | −0.975∗∗ | −0.0968∗∗ | 0.929∗∗ |
| DPPH | 1.000 | 0.326 | −0.056 | 0.255 | 0.300 | −0.469 | |
| TP | 1.000 | −0.489 | 0.979∗∗ | −0.982∗∗ | −0.949∗∗ | ||
| Homogentic acid | 1.000 | −0.656 | −0.641 | 0.637 | |||
| Salicylic acid | 1.000 | −0.999∗∗ | −0.965∗∗ | ||||
| Kaempferol | 1.000 | −0.976∗∗ | |||||
| ROS | 1.000 |
aFactors: ABTS and DPPH was analyzed by IC50 value; TP, total contents of phenolic compounds; ROS, intracellular reactive oxygen species. Significance was determined using SPSS by Pierson's correlation coefficient; ∗p < 0.05 and ∗∗p < 0.01.