Technical Data
Potato Dextrose Agar (Powder)
Microbiological Grade
Storage RT/4C    Shipping RT
Components shown as g/liter
Potato Infusion 4.0
Total: 39.0g/liter
A standard methods medium used to culture yeasts and molds from dairy and other food products.

Directions per Liter Dissolve 39 grams per liter of distilled/deionized (DDI) water, heat to boiling, stirring until completely solubilized. Dispense into appropriate containers, loosen caps and autoclave for 15-30 minutes at 121C (15psi). Cool to 45C. Acidify medium to pH 3.5 with sterile tartaric acid.

Storage and Stability: Store powdered media at RT. Opened bottles should be capped tightly and kept in a dark, low humidity environment. Prepared media should be kept at 4C and used within a short period of time.

Appearance: Light beige, homogeneous, free flowing powder

Solubility: Pale to light yellow, clear to slightly hazy and complete with heat

pH (3.9%): 5.6 0.2

Growth Performance: Note

Aspergillus niger ATCC 16404 Candida albicans ATCC 10231 Saccharomyces cerevisiae ATCC 97 Trichophyton mentagrophytes ATCC 9533:

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.