Abstract

Introduction. Maltodextrins are a common dietary supplement with a number of positive properties. They consist of D-glucose units connected by a (1–4) glucoside bond. The research objective was to improve the existing technology of maltodextrin production based on potato and corn starch.
Study objects and methods. Maltodextrins were obtained by enzymatic and acidic incomplete hydrolysis of potato and corn starch. Amilolux ATS and Glucolux A were used for enzyme hydrolysis, and sulfuric acid was used for acid hydrolysis. The finished product was obtained by spray drying. The sensory properties of the finished product were determined by standard methods. The method of high-performance liquid chromatography defined the hydrocarbon composition, while the method of dextrose equivalent helped to determine the reducing capacity of sugars.
Results and discussions. The study improved the technique of the enzymatic breakdown of starch. Amylolysis ATS proved to be the optimal enzyme preparation in concentration of 0.5 mL/50 cm3). Other optimal parameters included the starch-splitting activity of 2,330.50 u/mL, temperature of hydrolysis of 65 ± 2°C, and pH reactions of pH 6.5. The method of spray drying proved most efficient for drying starch hydrolysates: the drying temperature and air flow was 100°C, while the flow rate of the solution was 12 mL/min). The experiment also established the dextrose equivalent of the finished product (12–13%) and the quantitative content of sugars in the obtained samples. For maltodextrins obtained from potato starch, the content of maltose and glucose was 16.73 ± 0.25% and 12.48 ± 0.050%, respectively; for corn maltodextrins – 40.22 ± 0.30% and 52.93 ± 0.040%.
Conclusion. The market for food additives is developing rapidly. Maltodextrin is a natural food additive that can be used in various branches of food industry. The research made it possible to improve the technology of maltodextrin production in t dairy industry.

Keywords

Dextrins, starch, hydrolysis, drying, chromatography

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