Minimum Inhibitory Concentration (MIC) Testing

The Minimum Inhibitory Concentration (MIC) is a test which determines the lowest concentration of the antibacterial agent needed to inhibit the variable growth of the challenge organism. A suspension of the challenge organism is prepared at a concentration of one million colony forming units (CFU) per mL. The product is then tested neat or diluted and incubated to different concentrations with the challenge organism.  Turbidity within the sample would indicate growth of the challenge organism. The lack of turbidity would indicate that the challenge organism has been inhibited.

Minimum Bactericidal Concentration (MBC) can also be done by taking the minimum inhibitory concentration (MIC) test one step further and subculturing the inoculated and incubated test solution onto agar plates. The goals between the two tests are slightly different. The Minimum Inhibitory Concentration (MIC) test determines the lowest concentration required to inhibit variable growth of the organism and the Minimum Bactericidal Concentration (MBC) test determines the lowest concentration of antibacterial agent that will kill the organism.

Available Minimum Inhibitory Concentration (MIC) Services

  • Minimum Inhibitory Concentration (MIC)
  • Minimum Bactericidal Concentration (MIB)

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