MacConkey Agar | Selective and Differential Medium for Gram-Negative Bacteria

MacConkey Agar is a widely used selective and differential culture medium designed for the isolation and identification of Gram-negative enteric bacteria, particularly members of the Enterobacteriaceae family such as E. coli, Salmonella, and Shigella. It is a key diagnostic tool in clinical, food, pharmaceutical, and environmental microbiology laboratories.

Key Features:

• Bile Salts and Crystal Violet: Inhibit the growth of Gram-positive organisms

• Lactose: Differentiates lactose-fermenting from non-fermenting bacteria

• Neutral Red (pH indicator): Enables visual differentiation based on acid production

• Agar Base: Provides a solid surface for bacterial colony development

How It Works:

• Lactose-fermenting bacteria (e.g., E. coli): produce pink to red colonies

• Non-lactose fermenters (e.g., Salmonella, Shigella): form colorless or transparent colonies

• Gram-positive bacteria: inhibited by selective agents in the medium

Applications:

• Isolation and preliminary identification of Gram-negative enteric bacteria

• Microbial monitoring in the food and beverage industry

• Clinical diagnostics for gastrointestinal pathogens

• Microbiological quality control in pharmaceutical production

Trusted Quality with Exclusive Distribution in Iran

MacConkey Agar, produced by the internationally recognized brand BioLab, is formulated with high precision and manufactured under stringent quality control standards to ensure consistent and reliable performance in diagnostic and industrial microbiology.
In Iran, this product is officially and exclusively distributed by Fardad Azma Rad, the exclusive representative of BioLab in the region.

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