Table 1.

Strains of bacteria used in this study.

Strain	ATCC I.D.	β-lactamase	Culture Media and Conditions
B. cereus 5/β	13061	β-lactamase I/II	Brain heart infusion broth & agar, 37°C, 300 r.p.m.
E. coli J53	BAA196	ESBL TEM-10	Tryptic soy broth & agar, 37°C, 300 r.p.m.
	BAA197	ESBL TEM-12
	BAA198	ESBL TEM-26
	BAA199	ESBL SHV-3
	BAA200	ESBL SHV-4
	BAA201	ESBL TEM-3 (CTX-1)