Optimal Immobilization of β-Galactosidase onto κ-Carrageenan Gel Beads Using Response Surface Methodology and Its Applications

Table 2

Experimental results of CCD for 𝛽-galactosidase activity.

Trial number	𝑋1	𝑋2	Experimental	Predicted
			𝛽-galactosidase activity (U/g beads)	𝛽-galactosidase activity (U/g beads)
1	−1	−1	3.733	2.867
2	−1	+1	8.159	7.877
3	+1	−1	3.442	2.597
4	1	1	5.848	5.582
5	−∞	0	4.537	4.681
6	+∞	0	3.616	3.874
7	0	−∞	0.988	1.357
8	0	+∞	11.443	11.302
9	0	0	3.965	3.922
10	0	0	3.965	3.922
11	0	0	3.965	3.922