Table 2. Experimental conditions for the central composite design for the optimization of making extruded rice cake
Run
Experimental factor
Coded values
Actual values
X
1
X
2
Steaming time (min)
Number of extrusion
1
-1
1
40
3
2
0
0
80
2
3
0
1
80
3
4
1
-1
120
1
5
0
0
80
2
6
1
0
120
2
7
-1
0
40
2
8
1
1
120
3
9
-1
-1
40
1
10
0
-1
80
1