Petri dish 9 cm.
Intended use: Enumeration of yeasts and moulds from fruit concentrates.
Typical formula (g/l)*: Potato extract 4.0; Dextrose 20.0; Agar 15.0; Lactic acid to adjust pH
Interpretation: Yeasts will grow as creamy to white colonies. Moulds will grow as filamentous colonies of various colours. Count the number of colonies and consider the dilution factor in determining the yeast and/or mould counts per gram or millilitre of material.
* Adjusted and/or supplemented as required to meet performance criteria.