Biofilm-Inhibitory Activity of Wild Mushroom Extracts against Pathogenic Bacteria

Table 4

Effect of M. xanthopus extracts on the growth of planktonic bacterial cells.

Test bacteria	Optical density of the test and the negative control bacteria at 620 nm
	Chloroform	NC	70% ethanol	NC	Hot water	NC
P. aeruginosa	0.10 ± 0.01	0.10 ± 0.02	0.10 ± 0.02	0.10 ± 0.01	0.20 ± 0.01	0.20 ± 0.01
E. coli	0.10 ± 0.01	0.10 ± 0.01	0.20 ± 0.02	0.20 ± 0.02	0.20 ± 0.01	0.20 ± 0.02
S. aureus	0.10 ± 0.01	0.20 ± 0.01	0.20 ± 0.02	0.30 ± 0.01	0.20 ± 0.02	0.30 ± 0.02

NC: negative control; all extracts were tested at 250 μg/mL. The significance of the bold values is to indicate that all the extracts have shown promising results against S. aureus even beyond the negative control.