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Quantification of biomass of single- and dual-species biofilm at 24 and 48 h; n = 3 ± SD; data with different letters (a–f) are significantly different (two-way ANOVA followed by Tukey’s post hoc test; p < 0.05). Values with dissimilar letters are significantly different from each other (p < 0.05). Values with the same letter are not significantly different (p > 0.05).
