Research Article

Optimization of Fermentation Medium for the Production of Atrazine Degrading Strain Acinetobacter sp. DNS32 by Statistical Analysis System

Table 4

The effect of variables in the Plackett-Burman Design and associated statistical tests.

Factor 𝐸 ( 𝑋 i ) t-value 𝑃 > | 𝑡 |

Corn flour concentration (g/L) ( 𝑋 1 )−0.0783−16.9630.0375
Soybean flour concentration(g/L) ( 𝑋 2 )−0.0486−10.8000.0588
CaCO3 concentration (g/L) ( 𝑋 3 )−0.0122−2.6340.231
K2HPO4 concentration (g/L) ( 𝑋 4 )0.04389.4850.0669
MgSO4 7H2O concentration (g/L) ( 𝑋 5 )−0.0130−2.8240.217
NaCl concentration (g/L) ( 𝑋 6 )−0.0250−5.4050.116