Production of Biosurfactants by Soil Fungi Isolated from the Amazon Forest

Table 4

Analysis of variance for evaluating the statistical significance of the model for biosurfactant production by Penicillium 8CC2 (%).

Source	Sum of squares	Df	Mean of Squares	ratio	value
A: soybean oil	105,063	1	105,063	36,02	0,0093
B: yeast extract	915,063	1	915,063	313,74	0,0004
C: pH	85,5625	1	85,5625	29,34	0,0123
D: time	370,563	1	370,563	127,05	0,0015
BD	217,563	1	217,563	74,59	0,0033
CD	85,5625	1	85,5625	29,34	0,0123
Lack of fit	149,075	10	149,075	5,11	0,1030
Pure error	8,75	3	8,75
Total	1937,2	19