Table 4.

Removal percentages of one-day Streptococcus mutans biofilms formed on 96-well polystyrene plate surface and percent of adhesion inhibition of S. mutans with different concentrations of rhamnolipid solutions

Biosurfactant concentration (mg/mL)	Anti-biofilm activity (%)	Anti-adhesive activity (%)
12.5	66.7 ± 4.2*	93.7 ± 2.7
6.25	60.9 ± 7.8	91.5 ± 2.5
3.13	48.7 ± 5.5	90.8 ± 1.6
1.56	26.3 ± 4.3	92.2 ± 0.9
0.78	25.0 ± 5.8	78.7 ± 2.7
0.39	24.4 ± 4.4	70.1 ± 4.1
0.19	24.3 ± 5.6	63.1 ± 3.3
0.097	23.9 ± 6.1	51.2 ± 5.4

^*Data are shown as mean of three independent replicates ± standard deviation.