Effect of different yeast races on saké quality from domestic raw materials

Abstract. In the alcoholic beverage market, some attention has recently been paid to new beverages, one such beverage is saké. Along with other imported products, it is also necessary to establish production of this drink for the purpose of import substitution. The aim of the study was to investigate the influence of different yeast races on the quality of saké from domestic raw materials and to develop recommendations for their use. The research tasks included the study of the following issues: testing of different yeasts, study of the quality of domestic raw materials – rice from Krasnodar region for saké production, study of biochemical parameters of the obtained products, study of the elemental composition of saké, organoleptic evaluation of products. The research was carried out in the laboratory of the Department of Horticulture, Viticulture and Winemaking of the Institute of Horticulture and Landscape Architecture at the Federal State Budget Educational Institution of Higher Education “Russian State Agrarian University – Moscow Timiryazev Agricultural Academy” and in the Scientific Centre “Low-tonnage chemistry”. Eight yeast strains were included in the study, which were infected with steamed rice grains. Observations, records and analyses were carried out for each of 8 experimental samples: elemental and chemical composition, alcohol content, organoleptic indicators. For the first time in the established zymological features of yeast quality in obtaining products from domestic raw materials, features of microbiological characteristics of the resulting product and gave a conclusion and recommendations for the production of sake. Optimal variants of yeast, regularities of formation of biochemical composition of saké, content of various elements in the finished product, organoleptic indicators are established, recommendations on the studied factors are made. Key words: Yeast strains, saké, Japanese culture, sensory analysis, rice wine