V.V. Ananskikh, L.D. Shleina, L.A. Ananskikh
All-Russian Research Institute of Starch Products – the branch of the V.M. Gorbatov Federal Science Center of Food Systems of the RAS ul. Nekrasova, 11, pos. Kraskovo, Moskovskaya obl., 140051, Russian Federation
Abstract. The technology of production of maltodextrin from cornmeal provides for starch hydrolysis directly in cornmeal suspension. The saccharified mash goes for a separation of maltodextrin solution from not starchy impurities of flour, mainly protein and cellulose by filtering through a filtering membrane. The filtration yields in two products: maltodextrin solution 18–23% of dry substances (DS) and precipitation – a carbohydrate-protein concentrate 22–36% of dry substances. The work purpose was to develop the method to determine the yield of maltodextrin and carbohydrate-protein fodder product from cornmeal. The quantity of maltodextrin solution in the precipitation can vary according to a dosage of ferment medicine for a dilution, a cooking extent of the product and value of a pressure drop when filtering. When filtering the saccharified corn mash, the entire liquid phase is distributed in a certain proportion as a filtrate, which goes to the production of maltodextrin, and that remains in the precipitation, the amount of which can vary in greater or lesser side. It is developed the calculation method for the maltodextrin yield being defined as a function of the percentage of its solution in the precipitation. A part of the liquid phase binds to impurities and remains in the precipitation, thereby reducing a maltodextrin yield. If the content of the liquid phase in the precipitate is 35.9%, the yield of DS of maltodextrin from 100% cornmeal is 54%. Maltodextrin yield from the cornmeal was determined depending on the quantity of a liquid phase in the precipitation, which, in turn, depends on the DS amount in the cornmeal suspension going to the saccharification stage, and the DS amount in the precipitation. It is possible to obtain 56.8 kg of maltodextrin of 4.0% humidity and 50 kg of carbohydrate-protein fodder product of humidity 8.0% from 100 kg of commodity cornmeal of 10% humidity, ignoring losses.
Keywords: starch-containing raw material; cornmeal; amylolytic enzymes; dilution; glucose equivalent; maltodextrin; carbohydrate-protein fodder product.
Author Details: V.V. Ananskikh, Cand. Sc. (Tech.), head of laboratory (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); L.D. Shleina, senior research fellow; L.A. Ananskikh, senior research fellow.
For citation: Ananskikh V.V., Shleina L.D., Ananskikh L.A. Optimization of Parameters of Production of Maltodextrin and Fodder Product from Cornmeal // Dostizheniya nauki i tekhniki APK. 2017. Vol. 31. No. 11. Pp. 91-93 (in Russ.).