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

Table 6

Analysis of variance for Plackett-Burman designs.

Source of variation	Sum of squares	Degrees of freedom	Mean square	Ratio	Significance
IF
Regression	1549.47	6	258.245	6.5046	2.89*
Residuals	198.51	5	39.702
Total	1747.98	11
SF
Regression	1538.42	8	192.303	15.8162	2.22*
Residuals	36.48	3	12.159
Total	1574.9	11

∗Significant at the level of 95%.