APRY Agar Base is recommended for the detection and cultivation of acid resistant yeasts, Zygosaccharomyces bailli and Zygosaccharomyces rouxii in salads, sauces and dressings. The addition of acetic acid and potassium sorbate allows the growth of acid resistant yeasts.
- Appearance: Cream to yellow homogeneous free flowing powder
- Gelling: Firm, comparable with 1.5% Agar gel
- Color and Clarity of prepared medium: Light yellow colored clear to slightly opalescent gel forms in Petri plates
- Cultural characteristics observed with added 5 ml conc. acetic acid and 1 ml of 10% Potassium sorbate (FD124) after an incubation at 30°C for 72 hours