| Quantity | 100 mL |
|---|---|
| Unit Size | Each |
Answer:100 mL of Egg Yolk Tellurite Emulsion.
Answer:Baird-Parker Agar, including the Oxoid CM0275 base.
Answer:It contributes selective pressure and supports tellurite-reduction reactions useful in recognizing presumptive S. aureus colonies.
Oxoid™ Egg Yolk Tellurite Emulsion is a sterile microbiological supplement for preparation of Baird-Parker Agar, including the Oxoid CM0275 base. The 100 mL emulsion combines egg-yolk components with potassium tellurite, enabling characteristic colony reactions used in the isolation and presumptive enumeration of Staphylococcus aureus from food, environmental and related samples. Tellurite reduction contributes to dark colony coloration, while egg-yolk reactions help distinguish presumptive target colonies from background flora. Adding the supplement to appropriately cooled agar produces a prepared selective and differential medium without weighing separate egg-yolk and tellurite components. The liquid supplement simplifies reproducible medium preparation and is intended for laboratory microbiology rather than direct clinical treatment.
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