FIG. 5.

Biochemical analyses of multispecies biofilms formed in the presence of 1% (wt/vol) sucrose or 1% (wt/vol) glucose. (a) Average number of CFU recovered per biofilm. (b) Dry weight and biochemical composition of the biofilms. The data are means ± standard deviations (n = 9) from three independent experiments. The dry weight and the total amounts of protein and insoluble (INS) and soluble (SOL) polysaccharides in the sucrose-grown multispecies biofilm at 115 h are significantly different from the values for the glucose-grown multispecies biofilm (P < 0.05, as determined by ANOVA for all pairs using the Tukey-Kramer honestly significant difference test).