From: Optimization and partial purification of beta-galactosidase production by Aspergillus niger isolated from Brazilian soils using soybean residue
Run orders
Coded levels
β-Galactosidaseactivity (U/mL)a
X 1
X 2
X 3
1
− 1
19.64
2
19.02
3
7.07
4
8.83
5
10.06
6
0.03
7
0.00
8
1.12
9
0
23.4
10
24.64
11
22.60