The object of this study was gluten-free flour confectionery. In order to improve the structure of the assortment and create products for specialized purposes, the hypothesis was tested that ultra-high-frequency processing can help reduce the microbiological contamination of raw materials and improve the organoleptic characteristics of finished products. For this purpose, recipes for gluten-free flour confectionery products were developed, making it possible to obtain the best values of the specific volume of finished products – custard semi-finished products and gluten-free cupcake. Based on the implementation of second-order rotatable plans, regression models were built, and the resulting response surfaces were transformed to the canonical form. Based on this, it was established that the rational ratios of the components of the cupcake in the formulation are: 80 % flour from ultra-high-frequency processed chickpea flour, 15 % rice, and 5 % amaranth flour. The ratio of components of the custard semi-finished product from ultra-high-frequency processed chickpea flour and corn flour was approximately 50:50 %. Prototypes of gluten-free flour confectionery products were produced, and the main quality indicators were determined. It was found that when flour from ultra-high-frequency processed chickpeas was introduced into the recipe of a cupcake from rice and amaranth flour, the amount of limiting amino acid lysine increased by 1.08 times compared to unprocessed chickpea flour. In the custard semi-finished product, the amount of the limiting amino acid arginine increased by 1.97 times compared to unprocessed chickpea flour. In general, the biological value of enriched cupcake and custard semi-finished product on average exceeds the control sample by 1.5 times. In terms of safety, the developed gluten-free flour confectionery products meet the requirements of regulatory documentation.

In the article, flour from leguminous crops is offered as gluten-free flour for dietary nutrition of patients with celiac disease. For the nutrition of this category of people, it is necessary to use those crops and products from them that do not contain gluten. There is proposed a leguminous chickpea crop of the MIRAS 07 variety of domestic selection as an object of the study. The article presents microstructural data of microwave processed chickpeas of the Miras 07 variety. Studies were conducted on microwave processing of chickpeas of the MIRAS 07 variety for 3-5 minutes in comparison with a control untreated chickpea sample. Various flour samples were obtained from processed chickpea grain samples in order to prepare gluten-free products. Studies have been carried out to study the morphological structure and granulometric composition of the mercury film on a scanning electron microscope Quanta 200i 3D. The obtained microstructure sections indicate that in the chickpea flour of the MIRAS 07 variety, starch grains are mainly based on amylopectin, and in small amounts amylose, which confirms their high nutritional value. Starch particles of chickpea flour begin to break down with increasing temperature, which is very important in the process of dough production for flour confectionery products. The use of microwave processed chickpea flour in flour and confectionery production is preferable to unprocessed. Heat treatment of grain crops using a microwave can affect the basic biochemical parameters, especially carbohydrates, transforming them into easily digestible forms of starch.

This paper describes the materials and results of studying the properties of such a leguminous crop as the chickpea variety Miras 07 of Kazakhstan selection in order to obtain gluten-free flour and further process it to produce confectionery products. The research involved the ultra-high-frequency (UHF) treatment of chickpea grain to improve quality indicators and reduce anti-alimentary factors. A change in the protein fraction of chickpeas was determined under exposure to ultra-high-frequency processing. The study has proven the effectiveness of ultra-high-frequency treatment of chickpea for 180 seconds. Based on chemical analysis, it was found that the exposure to ultra-high-frequency treatment fully preserved the vitamin and mineral complex, compared with untreated chickpeas. When chickpea grain is heated for 180 seconds, up to 20 % of the starch contained in the grain passes into dextrin, which is easily absorbed by humans while the toxic substances are destroyed. The change in the protein fraction of chickpeas during ultra-high-frequency processing was determined. With ultra-high-frequency treatment of chickpea flour at 180 seconds of exposure, the protein fraction content remains unchanged at 79.8 %. The result based on the IR spectrum data indicates that ultra-high-frequency processing did not affect the protein-amino acid composition of the examined Miras 07 chickpea variety. The current study has confirmed the effectiveness of ultra-high-frequency chickpea treatment, which leads to the intensification of biochemical processes in the processed product due to the resonant absorption of energy by protein molecules and polysaccharides. Under the influence of ultra-high-frequency treatment, there is a decrease in the microbiological contamination of raw materials while the organoleptic indicators improve. According to the microbiological indicators of chickpea flour, the content of microorganisms was 1×103 CFU/g, which meets the requirements for sanitary and hygienic safety