MacConkey Agar without Crystal Violet and Salt Dehydrated Culture Media

The medium's dual modifications provide a new level of versatility. The absence of Crystal Violet allows for the growth of a broader range of organisms, including Gram-positive bacteria such as Staphylococcus and Enterococcus, which are typically inhibited on standard MacConkey Agar. It still retains its primary differential functionality, using lactose and Neutral Red to distinguish between fermenters and non-fermenters based on colony color. This powerful combination of features provides a reliable and clean method for isolating Gram-negative enteric bacilli from a variety of sources.

Please note: This product is not intended for use in the diagnosis of disease or other conditions in humans.

Features:

• Prevents the swarming of Proteus spp. for accurate colony counts
• Absence of Crystal Violet allows for the growth of Gram-positive organisms like Staphylococcus and Enterococcus
• Used for the isolation and differentiation of Gram-negative enteric bacilli
• Lactose fermentation results in distinct colonies for differentiation
• Ideal for specimens that contain swarming strains of Proteus

Specifications:

• Brand: Neogen® Culture Media
• Analyte: Enteric Bacteria
• Platform: Dehydrated Culture Media
• Mass: 500 g
• Formula (per liter): Enzymatic Digest of Casein (10.0 g), Enzymatic Digest of Gelatin (10.0 g), Lactose (10.0 g), Bile Salts (5.0 g), Neutral Red (0.04 g), Agar (12.0 g)
• Preparation: Suspend 47 g of the medium in one liter of purified water, heat to dissolve, and autoclave at 121°C for 15 minutes

Cross Reference:

• Acumedia: MacConkey Agar w/o CV & Salt (7378)
• BD / Difco: N/A
• BD / BBL: 294584*
• Oxoid: CM0507*
• Merck: N/A