UNIVERSITAT POLITÈCNICA DE VALÈNCIA Desarrollo ... - RiuNet

IV.Resultados y discusión. Capítulo II 133
Table 2. Regression coefficients and analysis of variance for probiotic counts
(log cfu/mL) obtained from the fitted model.
Factor/ Parameter
Regression coefficient / Value
Constant 22.18
Glucose -8.22
Fructose -3.81
Inulin -4.11
Inoculum -1.14
Glucose x Glucose 1.25
Glucose x Fructose 0.95
Glucose x Inoculum 0.76
Fructose x Inulin 2.38
P-value Lack-of-fit 0.880
R 2 0.59
R 2 -adj 0.51
Standard error of est. 0.53
Mean absolute error 0.32
Durbin-Watson statistic
(P-value)
1.678 (0.218)
R 2 = coefficient of determination R 2 -adj = explained variance
As can be seen in the coefficients (Table 2), when the growth factors
appear as linear variables, they seem to negatively affect the total probiotic
counts. Nevertheless, a more thorough examination of the fitted model