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MacConkey Broth is a differential medium recommended for the selection and recovery of the Enterobacteriaceae and related enteric gram-negative bacilli. MacConkey Broth, which contains neutral red as an indicator, is considered a standard medium for the primary isolation as well as the presumptive identification of the coliaerogenes group in ...
Remel MacConkey Broth is a liquid medium recommended for use in qualitative procedures for selective and differential isolation of enteric gram-negative bacilli. SUMMARY AND EXPLANATION.
10 wrz 2024 · Key components of the MacConkey medium include crystal violet dye, bile salts, lactose, and neutral red (pH indicator). Crystal violet dye and bile salts halt the growth of gram-positive bacteria. This allows only gram-negative species to form colonies on MAC agar. [2]
10 wrz 2024 · MacConkey agar (MAC) is a bacterial culture medium named after bacteriologist Alfred T. MacConkey (1861-1931). MacConkey agar is a selective and differentiating agar that only grows gram-negative bacterial species; it can further differentiate the gram-negative organisms based on their lactose metabolism.
MacConkey agar is a selective and differential media used for the isolation and differentiation of non -fastidious gram-negative rods, particularly members of the family Enterobacteriaceae and the genusPseudomonas. The inclusion of crystal violet and bile salts in the media prevent the growth of gram-positive bacteria and fastidious gram -
MacConkey Agar is a slightly selective and differentiating agar that only grows gram-negative bacterial species; it can further differentiate the gram-negative organisms based on their lactose metabolism.
Typical Composition. The appearance of the medium is clear and violet. The pH value is in the range of 7.1-7.5. The medium can be adjusted and/or supplemented according to the performance criteria required. Application and Interpretation.