V.V. Aksenov, S.K. Volonchuk, A.I. Resepin, S.A. Dubkova
Siberian Research and Technological Institute of Processing of Agricultural Products of the Siberian Federal Research Center of Agricultural Biotechnology of the RAS, pos. Krasnoobsk, a/y 358, Novosibirskii r-n, Novosibirskaya obl., 630501, Russian Federation
Abstract. The goal of our study was to reduce the time of bioconversion of wheat grain and energy consumption during the preparation of molasses by preliminarily processing the grain by IR irradiation. The study was performed at the laboratories of the Institute of Processing of Agricultural Raw Materials. Grain batches with 12, 15, and 18 % moisture were treated with IR radiation with a flux density of 17-23 kW/m2 by a laboratory unit designed in the Institute. The degree of starch destruction was determined according to GOST (State Standard) 29177-91; the grain stability before and after IR irradiation was determined on an original instrument designed at the Siberian Institute of Physicotechnical Problems; the energy consumption was determined from the readings of the SO EB 1 electric power meter. The highest degree of starch destruction, expressed in terms of glucose content, was noted for grain with 15 % moisture at a treatment time of 130 s (47.457 mg/g of dry substance) and 18 % moisture at a treatment time of 190 s (46.606 mg/g of dry substance). The IR flux density was 17 kW/m2. After IR treatment, the stability of grain decreased to the greatest extent (sixfold) in the case of 15 % moisture. The enzymatic hydrolysis of the irradiated (9 variants) and unirradiated grain was performed on a rotor-pulse apparatus (RPA), designed in the Siberian Research and Technological Institute of Processing of Agricultural Raw Materials. The total sugar content in the molasses after the enzymatic hydrolysis of the IR-irradiated grain was determined in six samples in 30, 60, 90, 130, 170, and 210 min. The equal percent of sugar (16.8 %) was noted in the sixth sample (210 min) of molasses from the unirradiated sample and the second (90 min) sample from the irradiated grain. The grain bioconversion time, in this case, decreased 2.1-2.4 times, and the total energy consumption including consumption on IR irradiation reduced 1.27-1.36 times.
Keywords: wheat grain, infrared, enzymatic hydrolysis, destruction, starch, molasses, energy consumption, efficiency.
Author Details: V.V. Aksenov, Cand. Sc. (Chem.), head of division; S.K. Volonchuk, Cand. Sc. (Tech.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); A.I. Resepin, research fellow; S.A. Dubkova, research fellow.
For citation: Aksenov V.V., Volonchuk S.K., Resepin A.I., Dubkova S.A. Evaluation of Efficiency of Technological Methods for Improvement of the Obtaining Method of Fodder Molasses. Dostizheniya nauki i tekhniki APK. 2017. V. 31. No 2. Pp. 45-47 (in Russ.).