Diverse effects of a biosurfactant from Rhodococcus ruber IEGM 231 on the adhesion of resting and growing bacteria to polystyrene

AMB Express

Table 1 Adhesion (%) of resting bacterial cells to polystyrene coated with biosurfactant at different concentrations

Bacterial strains	Biosurfactant concentration, mg/L
Bacterial strains	0	0.1	1	10	100	1000
A. simplex IEGM 667	21.4 ± 2.0	11.4 ± 1.1	10.9 ± 0.8	11.8 ± 1.3	11.4 ± 0.8	19.9 ± 2.9
B. subtilis ATCC 6613	7.7 ± 0.6	16.5 ± 2.2	12.0 ± 1.0	12.0 ± 1.3	14.6 ± 1.0	19.2 ± 2.1
B. linens IEGM 1830	12.6 ± 0.6	16.4 ± 0.9	16.5 ± 1.0	15.4 ± 1.1	14.7 ± 1.3	15.6 ± 1.6
C. glutamicum IEGM 1861	11.1 ± 0.5	11.4 ± 0.4	13.2 ± 0.7	13.8 ± 0.5	13.4 ± 0.4	9.6 ± 0.7
E. coli К-12	5.5 ± 0.3	5.8 ± 0.5	5.6 ± 0.4	5.5 ± 0.4	6.9 ± 0.5	11.7 ± 0.9
M. luteus IEGM 401	7.4 ± 0.6	6.9 ± 0.7	5.9 ± 0.2	6.7 ± 1.0	6.5 ± 0.4	11.1 ± 1.2
P. fluorescens NCIMB 9046	4.7 ± 0.3	4.4 ± 0.3	5.6 ± 0.5	4.1 ± 0.3	3.9 ± 0.2	5.2 ± 0.3

Here and in Table 2, means ± standard deviations of sixteen replicates are shown