Production of Nanoscale Grain Particles and Investigation of the Effectiveness of Their Enzymatic Hydrolysis and High-Gravity Fermentation by the Saccharomyces cerevisiae Yeast

Abstract

The conditions for obtaining ultradisperse grain nanoscale particles are worked out. It is revealed that ultragrinding can reduce the temperature of the gelatinization of starch from 80 to 60°C. The optimal conditions for soft water-thermal and enzymatic treatment with the production of the standard and high-gravity wort are selected. As a result, one of the energy-consuming stages of preparing the grain for fermentation is eliminated and the yield of the target product (alcohol) increases on average to 69.9 decaliters per one ton of conventional starch. The fermentation time is reduced on average by 16%. It is assumed that the development of highly efficient equipment for the production of nanoscale particles of one of the dominant technological schemes for bioethanol production will be the proposed scheme, allowing us to significantly reduce the cost of the end products.