1. CTAS
  2. All Volumes and Issues
  3. Volume 5, Number 2
  4. FERMENTATION OF KVASS WORT BY THERMOTOLERANT STRAINS OF MICROORGANISMS

FERMENTATION OF KVASS WORT BY THERMOTOLERANT STRAINS OF MICROORGANISMS

CTAS.
2022;
Volume 5, Number 2
: 142-148
https://doi.org/10.23939/ctas2022.02.142
Authors:
  1. О. M. Orobchuk
  2. R. O. Subtelnyi
  3. Bohdan Dzinyak
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University

The regularities of fermentation of yeast wort by thermotolerant strains of microorganisms are studied. For effective fermentation of yeast wort used a culture of thermotolerant yeast Saccharomyces cerevisiae MP-10 and complex lactic acid bacteria in the form of leavens “Kefir”, “Yogurt”, “Symbiotic”, “Bifivit”. The dynamics of changes in dry matter concentration and acidity in different conditions of yeast wort distribution are studied. The optimal content of yeast and lactic acid bacteria is established, namely

4.0 % suspension of yeast and LAB with a yeast content of 80 % of the mass. and lactic acid bacteria 20 % of the mass. It was shown that the drying process can be optimized by using thermotolerant strains of microorganisms and increasing the propagation temperature to 35 °C.

kvass; kvass wort; thermotolerant yeast; lactic acid bacteria; bacterial leavens
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