Thermo Scientific™ Remel™ Baird-Parker Agar

Description

• Isolate and enumerate Staphylococcus aureus with ready-to-use, highly selective and sensitive Thermo Scientific™ Baird-Parker Agar
• The medium aids the recovery of damaged cells for presumptive identification of Staphylococcus aureus in food specimens
• Baird-Parker Agar medium is widely recommended by national and international bodies (ISO 6888-1) for the isolation of Staphylococcus aureus 1
• Staphylococcus aureus forms distinctive grey-black shiny colonies with surrounding clear zones Ready-to-use convenience of prepared media The formulation conforms to ISO 6888-1 Baird-Parker 2 developed this medium from the tellurite-glycine formulation of Zebovitz et al
• 3 and improved its reliability in isolating Staphylococcus aureus from foods
• The addition of sodium pyruvate protects damaged cells and aids their recovery 4 and egg yolk emulsion acts as a diagnostic agent
• The selective agents, glycine, lithium and tellurite, have been carefully balanced to suppress the growth of most bacteria present in foods, without inhibiting Staphylococcus aureus
• Egg yolk emulsion makes the medium yellow and opaque
• Staphylococcus aureus reduces tellurite to form grey-black shiny colonies and then produces clear zones around the colonies by proteolytic action
• On further incubation, most strains of Staphylococcus aureus form opaque haloes around the colonies
• Some strains of Staphylococcus saprophyticus may also produce both clear zones and opaque haloes but can be distinguished by the longer incubation time required 5
• Colonies typical of Staphylococcus aureus, but without an egg yolk reaction, should also be tested for coagulase production 6
• Egg yolk reaction negative strains of Staphylococcus aureus may occur in some foods, especially cheese
• Our products are manufactured and distributed across the world through a vast network of company-owned facilities to ensure you receive the freshest, highest performing medium possible
• For fastest delivery, we recommend you select the product part number with a manufacturing origin closest to you
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• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand, combining powerful manual, semi-automated and fully automated test products and a comprehensive line of media and diagnostic products to offer a complete, end-to-end solution to quickly deliver the products you need and the quality results your laboratory depends on.