Anaerobic Reducible Blood Agar with colistin and nalidixic acid (CNA)

Cultivate and isolate fastidious anaerobic bacteria with Thermo Scientific™ Remel™ Anaerobic Reducible Blood Agar.

The addition of cysteine, palladium chloride, and dithiothreitol makes the medium reducible. Reducible medium improves the recovery of anaerobes by lowering the oxidation – reduction potential of the medium. Kanamycin and vancomycin are added as selective agents for recovery of Gram-negative anaerobes, especially Bacteriodes spp

Anaerobic Reducible Blood Agar is a solid media recommended for use in qualitative procedures for the primary isolation and cultivation of fastidious anaerobic bacteria.

• Selective: Kanamycin and vancomycin antibiotics inhibit gram-positive organisms and facultative anaerobic bacteria. Neomycin stimulates the growth of gram-negative anaerobes, especially Bacteriodes spp. Colistin and nalidixic inhibit the growth of most gram-negative bacilli.
• Ready-to-use: Convenience of prepared media.

Anaerobic Reducible Blood Agar is a nutritious medium containing peptone, hemin, vitamin K and sheep blood, which supply anaerobic organisms with required growth factors. Colistin and nalidixic inhibit the growth of most gram-negative bacilli. Kanamycin and vancomycin inhibit gram-positive organisms and facultative anaerobic bacteria. Neomycin facilitates the isolation of anaerobic organisms, such as Bacteriodes and Clostridium spp. and inhibits enteric gram-negative bacilli. Laked blood is added to enhance pigment formation by anaerobic bacteria.

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Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.