Table 3.

The analysis of variance for the experimental results.

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.