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Quadratic polynomial equations for the three responses.
| Responses | Equations |
|---|---|
| TF | Y1 = 1737.8 − 106.1X1 + 43.8X2–86.9X12 − 6.8X22 + 47.3X1X2 |
| CA | Y2 = 340.7 − 22.0X1 + 14.6X2 − 23.2X12 − 2.4X22 + 1.8X1X2 |
| FL | Y3 = 14.0 + 0.35X1 + 0.33X2 − 0.63X12 − 0.27X22 − 0.16X1X2 |
Y1, Y2 and Y3 are the responses. X1 and X2 are the independent variables, methanol fraction (%, v/v) and temperature extraction (°C), respectively.
