Table 4.

Antimicrobial activity of selected antimicrobial peptides in Escherichia coli with different LPS core types.

Antimicrobial activity μg/ml
	Cap18	Cap11	Cap11-1-18 m2	Melittin	Indolicidin	Cecropin P1	Cecropin B
E. coli BW25113 (K12)	4–8	8	16–32	16–32	32	16–32	16–32
E. coli F470 (R1)	4	16	32	16	≥32	32	32
E. coli F632 (R2)	4	8	16–32	32	≥32	32	16–32
E. coli F653 (R3)	4–8	16	≥32	32	≥32	32	32
E. coli F2513 (R4)	2–4	4–8	8–16	4	8–16	16–32	16
E. coli ATCC25922	4	16	32	16	32	32	32

Data are collected as minimal inhibitory concentrations (MICs) according to the Clinical and Laboratory Standards Institute (CLSI) and expressed in μg/ml. All MIC determinations were carried out in triplicates.