Optimization of Insoluble and Soluble Fibres Extraction from Agave americana L. Using Response Surface Methodology

Table 8

Analysis of variance for Box-Behnken design.

Source of variation	Sum of squares	Degrees of freedom	Mean square	Ratio	Significance
IF
Regression	1030.01	14	73.572	36.072	<0.01***
Residuals	30.594	15	2.039
Validity	25.539	10	2.554	2.526	15.9
Error	5.055	5	1.011
Total	1060.6	29
SF
Regression	999.31	14	71.379	29.567	<0.01***
Residuals	36.213	15	2.414
Validity	32.313	10	3.231	4.143	6.5
Error	3.899	5	0.779
Total	1035.52	29

∗∗∗Significant at the level of 99.99%.