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Table 2 Analysis of variance (ANOVA) for the response surface of full quadratic model for optimization of four categories of additives (A, cane molasses; B, CSL; C, WGE; D, cheese whey)

From: Screening for efficient nitrogen sources for overproduction of the biomass of the functionally probiotic L. plantarum strain RPR42 in a cane molasses-based medium

SourceSum of squaresDegree of freedomMean squareF valuep-value Prob > F
Model8.22140.59424.22< 0.0001
A-cane molasses3.1713.172287.67< 0.0001
B-CSL0.4410.44320.33< 0.0001
C-WGE0.08210.08259.17< 0.0001
D-cheese whey0.9810.98708.34< 0.0001
AB2.025E−00312.025E−0031.460.2481
AC6.001E−00416.001E−0040.430.5219
AD0.08410.08460.73< 0.0001
BC0.01710.01712.080.0041
BD0.05510.05539.88< 0.0001
CD3.712E−00613.712E−0062.681E−0030.9595
A20.01910.01913.710.0027
B20.1210.1284.92< 0.0001
C20.02010.02014.680.0021
D20.9510.95688.89< 0.0001
Residual0.018131.385E−003  
Lack of fit0.017101.710E−0035.700.0894
  1. Adj R-squared: 0.9955, Pred R-squared: 0.9879, Adeq precision: 83.541