One-Step Ultrafiltration Process for Separation and Purification of a Keratinolytic Protease Produced with Feather Meal

Table 3

Analysis of variance for enzyme recovery and purification factor.

	Factor	Sum of square	Degrees of freedom	Mean squares	Fcalculated	Ftabulated
()	Regression	4175.8	4	1043.9	300.8	3.4
	Residue	38.2	11	3.5
	Total corrected	4213.9	15
PF ()	Regression	5.3	3	1.8	9.00	3.5
	Residue	2.2	12	0.2
	Total corrected	7.5	15