Table 5.

Experimental matrix of full factorial 2² design of experiments with the variables’ values and the cumulative inhibitors removal (%) in each experiment by Pichia occidentalis M1 and P. occidentalis Y1′a

Experiment	Real levels		Cumulative inhibitors removal (%)
	X1 (pH)	X2 (rpm)	P. occidentalis M1	P. occidentalis Y1′a
1	4.0	100	19.43	17.69
2	5.0	100	22.87	20.50
3	4.0	300	36.29	46.04
4	5.0	300	42.89	38.97
5	4.5	200	39.52	43.08
6	4.5	200	39.98	42.79
7	4.5	200	39.01	42.41