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Table 2 Analysis of variance table (ANOVA) for response surface methodology of main effects and interacting effects of parameters in quadratic model for the dye degradation by Hypocrea lixii

From: Bioremoval of the synthetic dye malachite green by marine Trichoderma sp

Source Sum of squares df Mean square F value p-value Prob > F
Model 42482.83 14 3034.488 20.09046 < 0.0001***
X1-Temperature (°C) 22.77126 1 22.77126 0.150762 0.7033NS
X2-pH 18.41882 1 18.41882 0.121946 0.007318**
X3-Yeast extract (g L-1) 0.069738 1 0.069738 0.000462 0.9831NS
X4-Incubation period (days) 36055.94 1 36055.94 238.7159 < 0.0001***
 X1X2 0.16657 1 0.16657 0.001103 0.009739**
 X1X3 0.278689 1 0.278689 0.001845 0.9663NS
 X1X4 0.085404 1 0.085404 0.000565 0.9813NS
 X2X3 0.081467 1 0.081467 0.000539 0.009818**
 X2X4 0.040612 1 0.040612 0.000269 0.9871NS
 X3X4 0.075826 1 0.075826 0.000502 0.9824NS
 X12 298.9977 1 298.9977 1.979577 0.1798NS
 X22 320.0991 1 320.0991 2.119283 0.1661NS
 X32 118.8562 1 118.8562 0.786912 0.3890NS
 X42 12614.69 1 12614.69 83.51817 < 0.0001***
Residual 2265.618 15 151.0412   
Lack of Fit 1851.681 9 205.7423 2.982222 0.0984NS
Pure Error 413.9376 6 68.9896   
Cor Total 44748.45 29    
  1. Statistically significant ***(P <0.0001), **(P < 0.01), NS Non-significant.