Skip to main content

Table 4 Analysis of variance (ANOVA) for the quadratic model analysis for ethanol production

From: Statistical prediction of interactions between low concentrations of inhibitors on yeast cells responses added to the SD-medium at low pH values

  Degree of freedom (DF) Sequential sum of squares Adjusted means of square F-value P-values (probability)
Regression 9 1530.06 170.006 11.35 0.001
Linear 3 1072.07 122.088 8. 15 0.006
Square 3 392.06 130.686 8.72 0.005b
Interaction 3 65.93 21,977 1.47 0.288
Residual error 9 134.83 14.981
Lack- of- fit 5 101,89 20.378 2.47 0.200
Pure error 4 32.94 8.234
Total 18
  1. SD-medium containing initially 2% yeast extract, 18% glucose and 10 mg/mL of starting cells during fermentation periods of 6 h at 34 °C