Table 1:
Range of experiment and the variables level.
Factor Coding
- α
-1
0
+1
+α
A (Temperature,
o
C)
33.18
40
50
60
66.82
B (Total solid content, %)
2.64
4
6
8
9.36
C (Feed/inoculums ratio)
1:1.66
1:2
1:2.5
1:3
1:3.34