Research Article
Culture Condition Improvement for Phytase Production in Solid State Fermentation by Aspergillus ficuum Using Statistical Method
Table 5
Results of regression analysis for Plackett-Burman design.
| Term | Coefficient | t value | P value |
| Intercept |
5.17
|
33.89
| <0.0001 | Moisture |
1.17
|
7.67
| <0.0001 | Temperature | −0.14 | −0.90 | 0.3852 | Particle size | −0.95 | −6.20 | <0.0001 | Fermentation time |
3.35
|
21.98
| <0.0001 | MgSO4 |
2.25
|
14.72
| <0.0001 | KH2PO4 | −1.22 | −8.0 | <0.0001 | (NH4)2SO4 |
0.15
|
1.01
| 0.3323 | Glucose |
1.11
|
7.29
| <0.0001 | Tween-80 | −1.20 | −7.89 | <0.0001 | NaCl | −0.20 | −1.28 | 0.2236 | Inoculum size | −0.26 | −1.72 | 0.1110 |
|
|
= 0.96.
|