Table 1.
Regression coefficients and results of ANOVA analysis of the model.
| Parameter | Regression Coefficient |
|---|---|
| β0 | 2.69 *** |
| X1 | 0.31 *** |
| X2 | 0.08 ** |
| X3 | 0.02 |
| X1X1 | −0.25 *** |
| X2X2 | 0.02 |
| X3X3 | −0.07 |
| X1X2 | 0.12 ** |
| X1X3 | −0.02 |
| X2X3 | 0.01 |
| R2 | 0.99 |
| R2Adj | 0.96 |
| Model F-value | 39.24 |
| Model p-value | <0.001 |
| Lack-of-fit p-value | 0.46 |
β0—constant coefficient; X1—acetone concentration (%); X2—solvent-solid ratio (mL/g); X3—extraction temperature (°C). **, *** represent statistical significance with p < 0.01 and 0.001, respectively.