ESTIMATION OF THE EFFICIENCY OF THE OAT BRAN ENZYMATIC HYDROLYSIS WITH FEEDING AT HIGH INITIAL SUBSTRATE CONCENTRATIONS

Abstract

The aim of the work was to investigate the enzymatic hydrolysis of a chemical treatment product of oat bran at different substrate concentrations, as well as to evaluate the possibility of increasing the efficiency of hydrolysis at high initial substrate concentrations across different feeding variants. The process of enzymatic hydrolysis of a chemically treatment for oat bran products was carried out at various initial substrate concentrations, as well as with various ways of feeding: first - enzymes, second - substrate. The dependences of the current concentration and the yield of reducing substances (RS) from the initial substrate concentration in the range of 45-200 g / l are determined. The possibility of increasing the yield of reducing substances in both cases of feeding is indicated. It was found that an increase in the initial substrate concentration from 45 g / l to 200 g / l leads to an increase in the final concentration of RS by 81 g / l, while the RS yield is reduced by 33%; the enrichment of enzyme preparations or substrates in enzymatic hydrolysis with a maximum substrate concentration of 200 g / l makes it possible to increase the substrate conversion rate by 10-12%.