ABSTRACT
Changes in the content of reserve carbohydrates (trehalose, glycogen) were studied in the cells of baker's yeast during their continuous cultivation at various doses of nitrogen and phosphorus in the medium. The content of reserve carbohydrates in the cells, and their viability, increased with a decrease of nitrogen in the medium. Phosphorus displayed the opposite effect, which was however insignificant within the range of its concentrations used in the experiments.
Subject(s)
Carbohydrate Metabolism , Nitrogen/metabolism , Phosphorus/metabolism , Saccharomyces cerevisiae/metabolism , Cell Division , Cell Survival , Culture Media , Dose-Response Relationship, Drug , Glycogen/metabolism , Time Factors , Trehalose/metabolismABSTRACT
By an integrated factorial experiment optimal proportions of the quantity of inoculation yeast, molasses dosage and degree of their initial water dilution have been established for the periodic yeast cultivation. An equation describing the process has been derived. This equation makes is possible to assess yeast yield at any value of the above parameters within their extreme limits. The yeast cultivation under optimized conditions results in a 25% increase of the economic coefficient coefficient of reproduction as compared with the control, thus approximating the theoretically conceivable value.
