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This article provides data on the analysis of the properties of chitosan derivatives as a functional ingredient used in food technologies as a structure-forming agent, immunomodulator, enterosorbent of xantobiotics, anti-sclerotic and anti-arthritic factor, and as a regulator of the acidity of gastric juice. The expediency of the use of N-methylallyl-chitosan (chitosan derivative) as a substance that improves the functional-technological (moisture and fat-retaining power) and rheological properties of meat-and-vegetable emulsions is shown. The modes of micronising the emulsion depending on the chitosan derivative mass concentration, the speed of rotation of the knives of the microniser and the processing time were studied. Dependences on the change of moisture and fat-retaining power (MRP, FRP) and effective viscosity (η) on the above-mentioned parameters were investigated. The parameters of micronising were validated: the speed of rotation of the knives (υ) was 2500 rpm, the processing time (τ) was 60 s, υ was 3000 rpm, and τ was 50 s; also, the mass fraction of chitosan derivatives was 0.06%, which ensures the production of meat-and-vegetable emulsions of high quality.

The problem of the deficiency of dietary fibre and mineral substances in the diet of modern man is well known. This problem is proposed to be solved by making a food product - fishballs - based on a combination of minced fish meat from pollock and salmon belly, containing the biologically active chitin mineral food supplement "Hizitel". Dietary supplementation is derived from the waste of processing shrimp shells. The influence of chitin-mineral nutritional supplement on the rheological properties of minced fish and the biological value of products based on it has been studied. The optimum modes of mixing minced fish compositions were identified and the nutritional and biological value of the functional foods developed were defined.

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Yeast strains used in traditional breadmaking are designed to produce the best substrate fermentation and a high-quality product that meets all the requirements. However, the use of brewing yeast strains makes it possible to increase the biological value of the finished product rich in various vitamins and micro- and macroelements. Thus, the research objective was to investigate the effect of a new yeast strain on the physicochemical and organoleptic quality indicators of test semi-finished products and wheat bread in order to develop a technology for using yeast strain Y 3194 in baking industry. The control and experimental samples were made with the use of sponge, straight, and quick dough methods, as well as the concentrated milk ferment method. The authors studied the baking properties of the brewery yeasts and selected the dosage with the best physico-chemical and organoleptic characteristics of the finished product. By measuring the intensity of gas-producing and gas-retaining power during the dough fermentation, the fermentation in the control sample was found more intense, but there was a slight difference in the gas-retaining ratio (98.4% for the control sample and 99.4% for the experimental sample). The physicochemical parameters of bread made with the help of the new yeast strain and straight and quick dough methods did not exceed the permissible values: the crumb humidity was ≤ 44%; crumb acidity was ≤ 3%; crumb porosity was ≥ 72%. The research proved that yeast strain Y 3194 can be used in baking.