Minimum Inhibitory Concentration (MIC)

EMSL Analytical, Inc. provides MIC testing of liquid disinfectants and antimicrobials. The product or formulation is diluted a number of times, typically 1:1, with a sterile diluent and then inoculated with test bacteria. All the dilutions are incubated at an appropriate temperature for typically 18-24 hours. Growth or turbidity in the dilutions are evaluated and the lowest concentration showing no growth is the minimum inhibitory concentration. The dilutions can then also be plated on culture media to determine the minimum lethal concentration (MLC) if requested.