Improvement of Phytase Activity by a New Saccharomyces cerevisiae Strain Using Statistical Optimization

Table 5

Experimental design and results for the optimization of the fermentation conditions for phytase activity using RSM.

Run; n°	Temperature (°C)	Agitation (rpm)	Phytase activity in sodium phytate (U/mL)
			Experimental	Predicted
1	−1	−1	0.53	0.49
2	+1	−1	0.45	0.46
3	−1	+1	0.40	0.41
4	+1	+1	0.37	0.43
5	−1.41	0	0.29	0.32
6	+1.41	0	0.36	0.31
7	0	−1.41	0.59	0.61
8	0	+1.41	0.58	0.54
9	0	0	0.61	0.61
10	0	0	0.62	0.61
11	0	0	0.61	0.61