No abstract

при финансовой поддержке РФФИ и АКК в рамках научного проекта № 19-416-230067 р_а и частично в рамках выполнения Госзадания ФГБНУ СКФНЦСВВ * The study was carried out with the financial support of the RFBR and the AKR in the framework of the scientific project No. 19-416-230067 р_а and partially in the framework of the fulfillment of the State task of the FSBSI NCFSCHVW

The expediency of using preparations of dry inactivated (cell walls) yeast - glutaroma, salcline, bioproject, elivite and activite in the technology of sparkling wines produced by classical and reservoir methods has been studied. Decreased activity of redox potential is found when using said preparations irrespective of method of secondary fermentation. The greatest effect is noted in the combined use of cell wall preparations and bentonite suspension. The use of glutaroma and elivite, as well as mixtures thereof with bentonite, provided the highest amount of antioxidant activity of sparkling wine in both secondary fermentation methods. During the secondary fermentation of the control sample, an increase in glutathione content was observed in the first 2 weeks, after which its concentration remained virtually unchanged for 90 days of observation. The introduction into circulation of glutaroma, activite, bioproject, salcline, activated the fermentation process, and the concentration of reduced glutathione increased. A marked increase in glutathione concentration was found in the combined use of bentonite suspension with glutaroma, elivite and bioprotect. The increase in glutathione content was observed during the whole period of observation. On the basis of the obtained data, the mechanisms of oxidation-reduction process in production of sparkling wines by classical and reservoir methods are justified.