Study of the growth of yeasts from feta cheese.

The effects of various physicochemical parameters on the growth of three yeast strains were investigated, including: pH, sodium chloride content, water activity in the medium and temperature. All strains were unaffected by pH changes. Growth was optimal at pH 5.

Study of surface yeast flora of Roquefort cheese.

The change in yeast flora on the surface of two batches of Roquefort cheese was monitored over a period of 6 months. 401 isolates were determined and their technological properties were investigated. The main species isolated were: Debaryomyces hansenii and its non sporulating form Candida famata, Kluyveromyces lactis and its non sporulating form Candida sphaerica and Candida species.