Table 2.
Source a | DF | CPT | BA | ||||||
---|---|---|---|---|---|---|---|---|---|
Sum of Square | Mean Square | F Value | p-Value b | Sum of Squares | Mean Square | F Value | p-Value b | ||
Model | 9 | 2.45 | 0.27 | 53.94 | <0.0001 | 69.21 | 7.69 | 87.53 | <0.0001 |
X1 | 1 | 6.80 × 10−2 | 6.80 × 10−2 | 13.38 | 0.0081 | 10.29 | 10.29 | 117.09 | <0.0001 |
X2 | 1 | 5.50 × 10−2 | 5.50 × 10−2 | 10.82 | 0.0133 | 5.82 | 5.82 | 66.25 | <0.0001 |
X3 | 1 | 0.47 | 0.47 | 92.63 | <0.0001 | 22.23 | 22.23 | 253.02 | <0.0001 |
X1X2 | 1 | 1.69 × 10−4 | 1.69 × 10−4 | 0.033 | 0.8600 | 1.50 × 10−2 | 1.50 × 10−2 | 0.17 | 0.6894 |
X1X3 | 1 | 2.97 × 10−3 | 2.97 × 10−3 | 0.59 | 0.4681 | 0.55 | 0.55 | 6.27 | 0.0407 |
X2X3 | 1 | 7.30 × 10−2 | 7.30 × 10−2 | 14.39 | 0.0068 | 1.60 × 10−2 | 1.60 × 10−2 | 0.19 | 0.6800 |
X12 | 1 | 1.15 | 1.15 | 226.92 | <0.0001 | 15.38 | 15.38 | 175.07 | <0.0001 |
X22 | 1 | 0.39 | 0.39 | 77.38 | <0.0001 | 2.39 | 2.39 | 27.23 | 0.0012 |
X32 | 1 | 0.10 | 0.10 | 20.51 | 0.0027 | 9.76 | 9.76 | 111.14 | <0.0001 |
Residual | 7 | 3.50 × 10−2 | 5.05 × 10−3 | 0.62 | 8.80 × 10−2 | ||||
Lack of Fit | 3 | 2.70 × 10−2 | 8.89 × 10−3 | 4.11 | 0.1030 | 0.41 | 0.14 | 2.65 | 0.1847 |
R2 | 0.9858 | 0.9912 |
a X1 is the liquid–solid ratio (mL/g), X2 the extraction time (min), and X3 the microwave power (W). b p < 0.0001 is considered as significant.