Selective and Differential Media are both used in microbiological and clinical settings to aid in the identification of bacterial groups. List two specific media that have both selective and differential characteristics and specify the selective and differential agents in the media. Also describe how the results are interpreted.© BrainMass Inc. brainmass.com October 2, 2020, 12:16 am ad1c9bdddf
MacConkey Agar is used to aid in the identification of Gram negative bacteria. The media contains the selective agents crystal violet dye and bile salts that inhibit Gram positive bacterial growth. It further selects for enteric (intestinal) bacteria with the bile salts ...
Characteristics of selective and differential media are emphasized.