RESEARCH AND SELECTION OF SUBSTRATE NUTRIENT MEDIUM FOR THE CULTIVATION OF YEAST FROM PLANT MATERIAL

The article considers the composition of the substrates of nutrient media from plant materials for the cultivation of yeast. An important goal of any biotechnological processes is the optimization and development of technology and its equipment on a scientific basis. From an economic and environmental point of view, yeasts are producers of protein and biologically active substances. Yeast can be grown under industrial conditions without problems. Yeast has a high growth rate. It is characterized by its speed and tolerance to foreign microflora. The main raw material in yeast production is grain, enriched with nutrients for the growth and reproduction of yeast cells. It is able to absorb many food sources, easily separates from the plant fluid and does not pollute the air with spores. In recent years, the list of biotechnological processes using yeast has expanded significantly. Views on the use of yeast are also different. Yeast fungi contain a lot of protein and vitamins (B, D, E), so they are widely used for food and feed purposes. Currently, various enzyme preparations, organic acids, polysaccharides, polyhydric alcohols, vitamins and vitamin supplements are obtained from yeast. Yeast fungi are widely used in industry. They ferment sugar, emit carbon dioxide and alcohol. This property is used in the production of bread and alcohol, in the preparation of various wines, beer, and dairy products.

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