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Table 2 Analysis of variance for the response surface quadratic model (Eq. 6) for ADI release

From: Disruption of Pseudomonas putida by high pressure homogenization: a comparison of the predictive capacity of three process models for the efficient release of arginine deiminase

Source SS DF MS F value P value (Prob > F)
Model 163.87 9 18.21 35.67 <0.0001
Cell concentration (A) 59.10 1 59.10 115.79 <0.0001
Operating pressure (B) 4.52 1 4.52 8.86 0.0139
Number of passes (C) 3.05 1 3.05 5.98 0.0345
AB 23.79 1 23.79 46.61 <0.0001
AC 5.15 1 5.15 10.09 0.0099
BC 9.72 1 9.72 19.04 0.0014
A 2 26.36 1 26.36 51.64 <0.0001
B 2 3.36 1 3.36 6.58 0.0281
C 2 1.53 1 1.53 2.99 0.1142
Residual 5.10 10 0.51   
Lack-of-fit 3.33 5 0.67 1.88 0.2529
Pure error 1.77 5 0.35   
Cor. Total 168.98 19    
  1. R 2 = 0.9698; adjusted R 2 = 0.9426; predicted R 2 = 0.8297; adequate precision = 23.003; coefficient of variation (%) = 3.08; standard deviation = 0.71; mean = 23.23
  2. SS sum of squares; DF degrees of freedom; MS mean sum of squares