Thermo Scientific™ Oxoid™ Egg Yolk Tellurite Emulsion 10 mL x 10PK

Thermo Scientific™ Oxoid™ Egg Yolk Tellurite Emulsion is a selective enrichment supplement designed for use with Baird-Parker Agar (CM0275) for the isolation and identification of Staphylococcus aureus and other coagulase-positive staphylococci. This ready-to-use emulsion combines sterile egg yolk and potassium tellurite to enhance selective growth while enabling differentiation based on characteristic colony morphology and enzymatic activity.

The egg yolk component provides lecithin and lipids that allow detection of lecithinase activity, producing clear zones around colonies. Potassium tellurite acts as a selective agent, inhibiting competing microorganisms while allowing target organisms such as Staphylococcus aureus to grow and form distinctive black or gray colonies due to tellurite reduction.

This supplement is widely used in clinical, food safety, pharmaceutical, and environmental microbiology laboratories for reliable detection, isolation, and differentiation of staphylococci. Manufactured under stringent quality standards, Oxoid Egg Yolk Tellurite Emulsion ensures consistent performance and reproducible microbiological results.

Key Features and Benefits

• Selective supplement for Baird-Parker Agar media
• Supports isolation and differentiation of Staphylococcus aureus
• Contains egg yolk for lecithinase activity detection
• Includes potassium tellurite for selective inhibition of competing flora
• Ready-to-use sterile emulsion for convenience
• Ensures consistent and reliable microbiological performance
• Suitable for clinical, food, pharmaceutical, and environmental testing

Applications

• Isolation of Staphylococcus aureus from clinical samples
• Food microbiology and food safety testing
• Pharmaceutical microbiological quality control
• Environmental microbiology testing
• Clinical diagnostic microbiology research
• Water and environmental pathogen detection

Technical Specifications

Ordering Information

Thermo Scientific Oxoid Egg Yolk Tellurite Emulsion is an essential microbiological supplement for the selective isolation and differentiation of Staphylococcus aureus using Baird-Parker Agar. Its combination of egg yolk and potassium tellurite enables reliable identification through selective inhibition and enzymatic differentiation, making it a trusted reagent for clinical, food safety, pharmaceutical, and environmental microbiology laboratories.