Table 4.

The MICs (µg/mL) of the designed peptides against Escherichia coli ATCC25922 in the presence of physiological salts.

Peptides	Control 1	Physiological Salts 2
		NaCl	KCl	NH4Cl	MgCl2	ZnCl2	FeCl3
OM19D	2	4	2	2	4	2	4
OM19R	1	4	2	2	4	2	2
Melittin	2	4	2	2	2	2	2

¹ The control MICs were determined in Mueller–Hinton broth MHB medium without physiological salts. ² The final concentrations of NaCl, KCl, NH₄Cl, MgCl₂, CaCl₂, ZnCl₂, and FeCl₃ were 150 mM, 4.5 mM, 6 μM, 1 mM, 2 mM, 8 μM, and 4 μM, respectively.