Table 5.
Comparison of the TYPC and each antioxidant property between predicted values from mathematical models, actual experiment results of the optimal PHWE and conventional solvent extracts.
| Extracts | TYPC (mg/g RM) |
DPPH IC50 (mg/L) |
ABTS IC50 (mg/L) |
FRAP (μmol FSE/mg DW) |
|
|---|---|---|---|---|---|
| Predicted values | 172.44 °C, 1:30 g/mL, 14.06 min |
3.81 ± 0.08 | 96.3 ± 1.4 | 19.74 ± 0.26 | 1.12 ± 0.04 |
| Experimental values | 170 °C, 1:30 g/mL, 14 min |
3.85 ± 0.01 | 94.7 ± 0.6 | 21.88 ± 0.16 | 1.23 ± 0.02 |
| Maceration | 80% ethanol, 1:20 g/mL, 72 h × 2 |
0.096 ± 0.002 | 322 ± 5 | 43.0 ± 0.4 | 0.41 ± 0.02 |
| Reflux extraction | 80% ethanol, 1:30 g/mL 2 h × 3 |
0.485 ± 0.004 | 189 ± 5 | 26.84 ± 0.06 | 0.88 ± 0.01 |
Results are expressed as mean ± SD (n = 3).