Table 3.
Parameter | DF | TPC | Antioxidant Capacity | ||||||
---|---|---|---|---|---|---|---|---|---|
Frap | DPPH | CUPRAC | |||||||
F | Prob > F | F | Prob > F | F | Prob > F | F | Prob > F | ||
β0 | 1 | 26.02 | <0.0001 | 64.66 | <0.0001 | 60.08 | <0.0001 | 104.53 | <0.0001 |
β1 | 1 | 1.31 | 0.37 | 10.51 | 0.001 * | 9.29 | 0.004 * | 11.76 | 0.0003 * |
β2 | 1 | 0.42 | 0.77 | 4.58 | 0.031 * | 0.39 | 0.84 | 1.91 | 0.22 |
β3 | 1 | 4.88 | 0.01 * | 7.45 | 0.005 * | 7.02 | 0.01 * | 11.31 | 0.0004 * |
β12 | 1 | −0.14 | 0.94 | 3.05 | 0.22 | 0.68 | 0.8 | 2.06 | 0.34 |
β13 | 1 | 1.42 | 0.49 | 2.16 | 0.37 | −3.4 | 0.25 | −6.14 | 0.02 * |
β23 | 1 | 1.91 | 0.36 | −2.66 | 0.28 | −8.98 | 0.02 * | −2.27 | 0.29 |
β11 | 1 | 0.09 | 0.96 | 7.39 | 0.02 * | 4.43 | 0.16 | 1.01 | 0.63 |
β22 | 1 | 3.79 | 0.11 | 7.64 | 0.02 * | 2.71 | 0.36 | 6.45 | 0.02 * |
β33 | 1 | 1.23 | 0.56 | 1.4 | 0.56 | −3.03 | 0.31 | −5.33 | <0.05 * |
* Significantly difference with p < 0.05; β0: intercept; β1, β2 and β3: linear regression coefficients for temperature, time and ratio; β12, β13 and β23: regression coefficients for interaction between temperature × time, temperature × ratio and time × ratio; β11, β22 and β33: quadratic regression coefficients for temperature × temperature, time × time and ratio × ratio; Prob = probability.