L.I. Belyaeva, M.K. Pruzhin, A.V. Ostapenko, V.N. Gurova, T.I. Sysoeva
Federal Agricultural Kursk Research Center, ul. Karla Marksa, 70 b, Kursk, 305021, Russian Federation
Abstract. We determined the interaction of antimicrobial agent, antifoam, and enzyme preparation in a given dose range during the extraction of sucrose from sugar beet infected with mucous bacteriosis. Modelling was conducted in a laboratory experiment on the basis of the 2nd order D-optimal Box-Behnken plan for three factors at three levels of variation, supplemented by 5-fold duplication of one option in the centre of the factor space. The experimental design provided for the study of 13 options. The combined use of the antimicrobial agent Betasept, antifoam agent Voltes FSS 93, and the enzyme preparation of glycosidase action Dextrasept 2 in optimal doses corresponding to the maximum values of the generalized desirability coefficient (0.94 – for basic technological indicators and 0.82 – for sugar yield) improved technological indicators of diffusion juice, increased the cleaning effect by an average of 2.9 times that contributed to an increase in the estimated yield of white sugar by an average of 0.25%. The antimicrobial agent and the enzyme preparation had a comparable natural effect on the basic technological indicators of the sucrose extraction process. The antimicrobial agent has a predominantly inhibitory effect on the concentration of lactic acid, reducing it on average by 32%; the enzyme preparation had a predominantly inhibitory effect on the content of high-molecular compounds, reducing it on average by 26%; the defoamer had an inhibitory effect on the height of the foam column, lowering it on average by 5%. A high-quality flow of the technological process of extracting sucrose from sugar beets of the second degree of infection was achieved by introducing enzyme preparation at a dose of 6–8 kg/1000 tons of beets, the antimicrobial agent at a dose of 1.5– 2.0 kg/1000 tons of beets, and antifoam agent at a dose of 15–20 kg/1000 tons of beets.
Keywords: sucrose extraction; antimicrobial agent; enzyme preparation; defoamer; sugar beet; bacterial infection; bacterial soft rot; sucrose loss; technological indicator.
Author Details: L. I. Belyaeva, Cand. Sc. (Tech.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); M. K. Pruzhin, D. Sc. (Agr.), leading research fellow; A. V. Ostapenko, senior research fellow; V. N. Gurova, senior research fellow; T. I. Sysoeva, research fellow.
For citation: [Technological methods for inhibiting bacterial infection of the process of extracting sucrose in the sugar production] / LI Belyaeva, MK Pruzhin, AV Ostapenko, et al. // Dostizheniya nauki i tekhniki APK. 2021;35(2):66-72. Russian. doi: 10.24411/0235-2451-2021-10211.