Source Sum of square Degree of freedom Mean Square F-Value P-Value  
Model
A-pH
8571.060
291.856
7
1
1224.440
291.856
0.758
6.855
0.003
0.059
significant
C- Agitation 5848.550 1 5848.550 137.365 0.000  
D- Incubation Time 1385.890 1 1385.890 32.550 0.005  
F- Glucose
Residual
Core Total
7.239
170.307
8741.360
1
4
11
7.239
42.577
0.170 0.701  
Table 2: ANOVA for the experimental results of the central composite design (quadratic model).