Table 5.

Analysis of variance of the quadratic model adjusted to the extraction of total phenolic compounds. A: %MeOH; B: temperature; C: amplitude; D: cycle; E: pH; F: ratio.

Variable	Source	Coefficient	Sum of Squares	Degrees of Freedom	Mean Square	F-Value	p-Value
	β 0	−9.1847		27
A	X1	0.2657	0.0241	1	0.0241	0.0100	0.9227
B	X2	0.2620	1.3348	1	1.3348	0.5300	0.4723
C	X3	0.0308	7.9465	1	7.9465	3.1700	0.0868
D	X4	15.8107	7.8318	1	7.8318	3.1200	0.0890
E	X5	−0.9338	0.1785	1	0.1785	0.0700	0.7918
F	X6	2.3123	32.7367	1	32.7367	13.0500	0.0013
A:A	X12	−0.0034	45.9076	1	45.9076	18.3000	0.0002
A:B	X12	0.0004	0.6962	1	0.6962	0.2800	0.6028
A:C	X13	0.0013	3.4061	1	3.4061	1.3600	0.2545
A:D	X14	−0.1454	13.2132	1	13.2132	5.2700	0.0301
A:E	X15	−0.0148	6.8450	1	6.8450	2.7300	0.1106
A:F	X16	0.0081	8.2825	1	8.2825	3.3000	0.0808
B:B	X22	−0.0015	18.6571	1	18.6571	7.4400	0.0113
B:C	X23	−0.0005	0.7503	1	0.7503	0.3000	0.5891
B:D	X24	−0.0672	2.0301	1	2.0301	0.8100	0.3766
B:E	X25	0.0048	2.0521	1	2.0521	0.8200	0.3741
B:F	X26	−0.0080	11.4960	1	11.4960	4.5800	0.0419
C:C	X32	−0.0010	1.5125	1	1.5125	0.6000	0.4445
C:D	X34	0.0450	0.4050	1	0.4050	0.1600	0.6911
C:E	X35	0.0080	1.2800	1	1.2800	0.5100	0.4814
C:F	X36	−0.0005	0.0371	1	0.0371	0.0100	0.9042
D:D	X42	−7.3422	2.1660	1	2.1660	0.8600	0.3614
D:E	X45	1.1820	4.3660	1	4.3660	1.7400	0.1986
D:F	X46	−0.3020	1.1401	1	1.1401	0.4500	0.5062
E:E	X52	0.0887	3.1619	1	3.1619	1.2600	0.2719
E:F	X56	−0.0142	0.2521	1	0.2521	0.1000	0.7538
F:F	X62	−0.0647	26.9429	1	26.9429	10.7400	0.0030
Pure Error			65.2306	26	2.5089
Total			261.2350	53