Antimicrobial activity of different copper alloy surfaces against copper resistant and sensitive Salmonella enterica

► Greater inactivation of Salmonella enterica was seen on higher copper (Cu) content alloys. ► Cu resistant Salmonella strains survived better than sensitive one on Cu alloys. ► Survival of S. enterica on high Cu alloys was only 10-15 min under dry conditions. ► Cells suspended in 0.8% NaCl were more rapidly inactivated than those in TSB.