Difco™ MacConkey Agar, BD Diagnostics

Supplier: BD CANADA MICROBIOLOGY CA

275300 212122
CA90003-958EA 2512.5 CAD
CA90003-958 CA90000-502 CA90000-504
Difco™ MacConkey Agar, BD Diagnostics
Media for Microbiology Prepared Media for Microbiology

MacConkey Agar is used for isolating and differentiating lactose-fermenting from lactose-nonfermenting gram-negative enteric bacilli.


  • Crystal violet and bile salts inhibit gram-positive organisms
  • Prepared without added carbohydrates
  • Recommended for the isolation of E. coli from nonsterile pharmaceutical products


Isolated colonies of coliform bacteria are brick red in color and may be surrounded by a zone of precipitated bile. When lactose nonfermenters grow in proximity to coliform colonies, the surrounding medium appears as cleared areas.

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