Fig 3. pH values of the culture medium according to the biofilm treatments (glucose + fructose or sucrose) and biofilm development time (h) as an indicator of biofilm acidogenicity.

Time points at 80 h and 96 h refer to the harvest moment at abundance and starvation of carbohydrates, respectively. Asterisks indicate statistically significant difference between treatments at the time point evaluated (p < 0.05). (Means ± SD; n = 12).