extremely significantp < 0.01
The linear term x 1 (initial pH) had an extremely significant effect on TA production ( p < 0.01), followed by x 3 (temperature) ( p < 0.05).
The linear term x 1 (initial pH) had an extremely significant effect on TA production ( p < 0.01), followed by x 3 (temperature) ( p < 0.05).
ANOVA of the quadratic regression model revealed that the model was highly significant, as evidenced by the low p value for the Fisher’s F -test (( p model > F ) < 0.0001) ( Table 4 ).