L. S. Solomina, N. D. Lukin, D. A. Solomin
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, Lyuberetskii r-n, Moskovskaya obl., 140051, Russian Federation
Abstract. The studies were conducted to determine the effect of the main technological parameters (catalyst consumption, temperature and duration of dextrinization) of triticale dextrin production by thermochemical method on its physicochemical properties. Aluminum-potassium alum was used as a catalyst. The concentration of their solution was calculated in the range from 0.25 to 1.25% of the weight of starch dry matters. The dextrinization was carried out at a temperature of 160 Celsius degrees up to the obtainment of a white product with a solubility of 60%. The effect of temperature was determined by varying it within a range of 140–180 Celsius degrees in increments of 10 Celsius degrees. The consumption of alum in these experiments was 0.75% of the weight of starch dry matters. The physicochemical properties of triticale and corn dextrin were compared using the samples produced at an aluminium-potassium alum consumption rate of 0.75% of the weight of starch dry matters and at dextrinization temperature of 160 Celsius degrees. The heat treatment was continued up to obtainment of the dextrin with a degree of solubility in the cold water of 100%. In order to ensure high technological effectiveness of the process and to produce high-quality triticale dextrin, the consumption of aluminium-potassium alum should be at least 0.75% of the weight of starch dry matters. The degree of dextrin solubility reached its maximum value (100%) at temperatures of 160–180 Celsius degrees. With an increase in the consumption of the catalyst from 0.25 to 1.25% when producing dextrin with a solubility of 60%, the dextrinization duration was reduced by 140 minutes. With an increase in dextrinization temperature from 160 to 180 Celsius degrees during the dextrin production with 100% solubility, the dextrinization duration was reduced by 1.5 hours. At the equal solubility, the dynamic viscosity of triticale dextrin was higher than that of corn dextrin. Changing the catalyst concentration, temperature and duration of dextrinization, it was possible to manufacture a series of products characterized by different dynamic viscosity, solubility in cold water and reducing capacity that made it possible to produce many adhesive compositions on their basis.
Keywords: triticale starch; catalyst; technological parameters; dextrinization; physicochemical parameters; triticale dextrin.
Author Details: L. S. Solomina, Cand. Sc. (Tech.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); N. D. Lukin, D. Sc. (Tech.), director; D. A. Solomin, head of division.
For citation: Solomina L.S., Lukin N.D., Solomin D.A. Study of Triticale Dextrin Production Process. Dostizheniya nauki i tekhniki APK. 2019. Vol. 33. No. 5. Pp. 69–72 (in Russ.). DOI: 10.24411/0235-2451-2019-10517.