Procedeu de conservare a tulpinii de levuri Saccharomyces cerevisiae CNMN Y 20

Abstract

Invenţiile se referă la biotehnologie, şi anume la procedee de conservare a tulpinii Saccharomyces cerevisiae CNMN-Y-20 pe un termen îndelungat şi utilizarea acesteia ca sursă de substanţe biologic active.

Procedeele constau în conservarea levurii Saccharomyces cerevisiae CNMN-Y-20, prin liofilizarea acesteia, utilizând medii de protecţie constituite din lapte degresat şi 5...10% vol. extracte de compuși boactivi din biomasa cianobacteriei Spirulina platensis.

The inventions relate to biotechnology, particularly to a process for conservation of Saccharomyces cerevisiae CNMN-Y-20 for a long term and its use as a source of biologically active substances. The processes consist of preserving the yeast Saccharomyces cerevisiae CNMN-Y-20 by using lyophilization with protective media consisting of skimmed milk and 5…10% vol bioactive extracts from Spirulina platensis biomass. The processes ensure the stimulation of protein content in the Saccharomyces cerevisiae CNMN-Y-20 biomass. After one year of freeze-drying, protein content in yeast biomass increase by 20.70…40.48%.