Table 7.
Correlation coefficient between the antioxidant variables, a-amylase, a-glucosidase, and ß-galactosidase enzyme inhibitory activities, and the chemical contents of aqueous and organic extracts of the aerial part of Haloxylon scoparium.
| Variables | H2O2 | DPPH | ABTS | FRAP | RP | Total phenolics | Flavonoids | Catechic tannins | α-Amylase | α-Glucosidase | β-Galactosidase |
|---|---|---|---|---|---|---|---|---|---|---|---|
| H2O2 | 1 | ||||||||||
| DPPH | 0.2581 | 1 | |||||||||
| ABTS | 0.3023 | 0.9693 | 1 | ||||||||
| FRAP | 0.4676 | 0.9424 | 0.9713 | 1 | |||||||
| RP | 0.3906 | 0.9255 | 0.9809 | 0.9845 | 1 | ||||||
| Total phenolics | 0.4477 | 0.8563 | 0.8944 | 0.9372 | 0.9429 | 1 | |||||
| Flavonoids | 0.5243 | 0.8055 | 0.8567 | 0.8730 | 0.8983 | 0.9416 | 1 | ||||
| Catechic tannins | −0.2149 | 0.4813 | 0.3640 | 0.2451 | 0.1921 | −0.0338 | −0.0433 | 1 | |||
| α-Amylase | 0.1604 | 0.8094 | 0.8237 | 0.8115 | 0.8508 | 0.7721 | 0.7162 | 0.1979 | 1 | ||
| α-Glucosidase | 0.4885 | −0.0822 | 0.1413 | 0.2234 | 0.2832 | 0.2696 | 0.2851 | −0.5792 | 0.1484 | 1 | |
| β-Galactosidase | 0.0412 | −0.6996 | −0.5983 | −0.5705 | −0.5658 | −0.6320 | −0.5357 | −0.2659 | −0.7078 | 0.2847 | 1 |