Influence of Technological Parameters on Physical and Chemical Characteristics of the Triticale Dextrine

Abstract

The work covers the research results of receiving triticale dextrine by a thermochemical method. The hydrochloric acid was applieda catalyst. It is defined the influence of key technological parameters, such as the catalyst consumption, temperature and time of starch dextrinization on physical and chemical properties of a triticale dextrine. It is shown that a degree of dextrine solubility reaches the maximum value (100 %) at 140…180 °C. As the temperature rises the dextrinization time significantly lows. To provide high efficiency process and receive a high-quality triticale dextrine the consumption of the hydrochloric acid is recommended at 0.08-0.10 % of HCI gas to the dry solids of starch. It is revealed that when dextrinization starch the depolymerization process of polysaccharide molecules of starch intensively proceeds as a result the degree of solubility of dextrine and the content of reducing substances are raising, but the dynamic viscosity of paste decreases. Mathematical data interpretation according to the Table Curve 3D. 4a program is carried out. The regression equation is received to definea degree of dextrine solubility at its various parameters of processing. It is carried out a comparative assessment of physical and chemical properties of dextrines received from triticale and corn starch under identical conditions. It is established that dynamic viscosity of a triticale dextrine is higher, than of a corn one at their identical solubility. It is shown that a series of triticale dextrines having the different dynamic viscosity, solubility in cold water, reducing ability are possible to be received by changing temperature, dextrinization time and the catalyst consumption that allows to make a set of glue compositions on their basis for various industries.