Table 5.

Results for operating parameters in validation study.

x1	x2	x3	Membrane permeability (Lm−2 h-1 bar-1)			Amount of xylitol (g/L)
			Actual	Predicted	Error (%)	Actual	Predicted	Error (%)
30.00	1.40	1.06	56.03	57.30	2.21	15.49	16.28	4.85
40.00	1.20	0.88	51.21	52.07	1.65	15.12	15.80	4.30
40.00	1.20	1.24	55.39	56.76	2.41	15.72	16.26	3.32
60.00	1.20	0.88	50.25	50.19	0.12	15.12	15.07	0.33
40.00	1.20	0.88	51.87	52.07	0.39	15.67	15.80	0.83