Question

Differential culture medium

03 Feb 2026
Answer :
Word Count : 249
Differential culture media are specialized microbiological growth media designed to distinguish between different groups of microorganisms based on their biological and biochemical characteristics. These media contain specific ingredients that allow multiple organisms to grow but produce visible differences in colony appearance, color change, or other observable reactions. The differentiation usually depends on metabolic activities such as fermentation of sugars, enzyme production, or hemolysis patterns. One of the most common examples is MacConkey agar, which differentiates lactose fermenting bacteria from non-lactose fermenting bacteria.
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