Table 4.

Results of synergism tests of EO/ERY combinations at pH 7.4, 6.5, and 5.0 in terms of MBC.

Strain	pH 7.4		pH 6.5		pH 5.0
	MBC EO/ERY (μL/mL)/(μg/mL)	FBC	MBC EO/ERY (μL/mL)/(μg/mL)	FBC	MBC EO/ERY (μL/mL)/(μg/mL)	FBC
ATCC 29213	6.25/0.5	0.14	6.25/2	<0.13	12.5/4	<0.52
SA 13	3.1/1	0.16	6.25/2	0.26	6.25/4	<0.52
SA 96	3.1/1	0.16	3.1/4	0.13	6.25/4	<0.52
SA 139	3.1/1	0.16	6.25/2	0.26	6.25/8	<0.53
SA 78A	25/64	<0.56	25/64	<0.56	12.5/64	<0.56
SA 79A	25/64	<0.56	25/64	<0.56	12.5/64	<0.56
SA 86B	25/64	<0.56	25/128	<0.63	12.5/64	<0.56