Table 2. ANOVA Results for the I-Optimal Design Quadratic Model for Dependent Variables of UAE Raw Horseweed Food Fibera.
| source | term df | error df | F-value | p-value |
|---|---|---|---|---|
| Dependent Variable: Yield | ||||
| whole-plot | 2 | 5.19 | 76.35 | 0.0001 |
| b (power) | 1 | 4.78 | 77.20 | 0.0004 |
| b2 (power2) | 1 | 5.74 | 43.45 | 0.0007 |
| subplot | 3 | 14.63 | 42.67 | <0.0001 |
| A (time) | 1 | 15.58 | 59.63 | <0.0001 |
| Ab (time × power) | 1 | 14.08 | 34.18 | <0.0001 |
| A2 (time2) | 1 | 13.99 | 14.87 | 0.0017 |
| S.D. = 4.18, mean = 242.80, R2 = 0.9490, adj. R2 = 0.9235 | ||||
| mathematical correlation between the response factor and independent variables: yield = 246.1 – 8.105 × A – 11.94 × b + 7.293 × Ab + 6.556 × A2 – 14.85 × b2 | ||||
| Dependent Variable: pH | ||||
| whole-plot | 2 | 19.00 | 17.73 | <0.0001 |
| b (power) | 1 | 19.00 | 33.98 | <0.0001 |
| b2 (power2) | 1 | 19.00 | 3.43 | 0.0796 |
| subplot | 3 | 19.00 | 15.94 | <0.0001 |
| A (time) | 1 | 19.00 | 23.45 | 0.0001 |
| Ab (time × power) | 1 | 19.00 | 10.67 | 0.0041 |
| A2 (time2) | 1 | 19.00 | 19.59 | 0.0003 |
| S.D. = 0.5253, mean = 9.83, R2 = 0.08052, adj. R2 = 0.7078 | ||||
| mathematical correlation between the response factor and independent variables: pH = 10.04 – 0.7078 × A – 0.8477 × b – 0.5907 × Ab – 1.073 × A2 + 0.4444 × b2 | ||||
| Dependent Variable: aPTT Activity | ||||
| whole-plot | 2 | 19.00 | 3.90 | 0.0380 |
| b (power) | 1 | 19.00 | 3.44 | 0.0791 |
| b2 (power2) | 1 | 19.00 | 5.20 | 0.0344 |
| subplot | 3 | 19.00 | 9.43 | 0.0005 |
| A (time) | 1 | 19.00 | 24.49 | <0.0001 |
| Ab (time × power) | 1 | 19.00 | 2.17 | 0.1568 |
| A2 (time2) | 1 | 1900 | 2.28 | 0.1471 |
| S.D. = 0.0118, mean = 0.0999, R2 = 0.6637, adj. R2 = 0.4956 | ||||
| mathematical correlation between the response factor and independent variables: IU = 0.1120 + 0.01623 × A + 0.006055 × b + 0.005982 × Ab – 0.008222 × A2 – 0.01227 × b2 | ||||
a
The obtained coefficients of determination were as follows: R2 = 0.949, Radjusted2 = 0.924 for the yield values; R2 = 0.805, Radjusted2 = 0.708 for the pH of the raw extracts; and R2 = 0.664, Radjusted2 = 0.496 for the anticoagulant activity assessed by the aPTT test.