Table 4.
Mathematical models and coefficients for the responses using coded values.
| Dependent Variables | Models | CV (%) | R2 | Adjusted R2 | F-Value | Lack of Fit (p-Values) |
|---|---|---|---|---|---|---|
| Extraction yield (%) | 31.9 + 2.52∙T + 1.67∙t − 1.07∙T2
(Equation (1)) |
2.63 | 0.902 | 0.875 | 33.71 | 0.762 |
| Phenolic concentration (g GAE/L) | 4.50 + 0.41∙T + 0.28∙t + 2.50∙B (Equation (2)) |
7.74 | 0.970 | 0.964 | 143.30 | 0.020 |
| TPC(mg GAE/g EOP) | 34.83 + 4.03∙T + 1.83∙t − 7.12∙B + 2.35∙T∙B − 3.03∙T2 (Equation (3)) |
2.76 | 0.979 | 0.967 | 83.44 | 0.486 |
| TFC (mg RE/g EOP) | 100.26 + 5.69∙T − 32.95∙B + 20.61∙B2 (Equation (4)) |
2.04 | 0.994 | 0.993 | 644.61 | 0.815 |
| DPPH (mg TE/g EOP) | 36.45 + 2.82∙T − 10.13∙B (Equation (5)) |
4.27 | 0.966 | 0.960 | 182.27 | 0.497 |
| ABTS (mg TE/g EOP) | 115.91 + 13.72∙T + 6.21∙t − 12.07∙B (Equation (6)) |
4.52 | 0.901 | 0.876 | 36.26 | 0.746 |
| FRAP (mg TE/g EOP) | 37.08 + 5.40∙T − 5.50∙B (Equation (7)) |
5.69 | 0.861 | 0.838 | 37.27 | 0.743 |