Table 4.

Antibacterial activity expressed as minimum inhibitory concentration (MIC) of the essential oils against Escherichia coli and Enterococcus strains *.

Bacterial Strain	Illicium verum		Ocimum basilicum		Origanum vulgare		Salvia sclarea		Thymus vulgaris
	%	mg/mL	%	mg/mL	%	mg/mL	%	mg/mL	%	mg/mL
E. coli 1069	0.3	0.611	0.3	0.571	0.15	0.293	0.15	0.279	0.3	0.585
E. coli 1002	0.3 0.611		1.25	2.287	0.6	1.183	1.25	2.232	0.3	0.585
E. coli 994	0.07	0.152	0.15	0.285	0.15	0.293	0.15	0.279	0.07	0.146
E. coli 986	1.25	2.445	NE		0.3	0.587	1.25	2.232	0.3	0.585
E. coli 977	1.25	2.445	1.25	2.287	0.3	0.587	1.25	2.232	0.15	0.292
E. coli 876	0.07	0.152	0.6	1.143	0.15	0.293	0.07	0.139	0.07	0.146
E. coli 835	0.3	0.611	0.6	1.143	0.3	0.587	0.3	0.558	0.07	0.146
Enterococcus 1091	NE		10	18.3	0.6	1.183	NE		1.25	2.342
Enterococcus 1079	NE		2.5	4.575	0.6	1.183	NE		1.25	2.342
Enterococcus 1034	NE		5	9.15	0.6	1.183	NE		0.6	1.171
Enterococcus 835	NE		5	9.15	0.6	1.183	NE		1.25	2.342
Enterococcus 793	NE		1.25	2.287	0.6	1.183	NE		1.25	2.342
Enterococcus 654	NE		1.25	2.287	0.6	1.183	NE		1.25	2.342
Enterococcus 618	NE		2.5	4.575	0.6	1.183	NE		1.25	2.342
Enterococcus 568	NE		5	9.15	0.6	1.183	NE		0.6	1.171

Legend—NE: no effective; *: Enterococcus faecium (strains 1091, 1079, 1034), Enterococcus faecalis (strains 835, 793, 654, 618), Enterococcus durans (strain 568).