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Biofilm formation assay of Bacillus sp. B87. Submerged biofilms of Bacillus sp. B87 and B. cereus ATCC 14579 were visualized via crystal violet staining. Data represent the mean of three independent experiments, each consisting of six internal replicates. Error bars indicate standard deviations. Statistical analysis includes Student’s paired t-test (* p < 0.01).
