The expediency of using freshwater fish and aromatic root vegetables in the technology of preserves has been substantiated. Based on the organoleptic analysis, the compatibility of freshwater fish and aromatic vegetables as part of preserves has been determined. The conditions for pretreatment of salted semi-finished products to ensure their maturation as part of preserves have been theoretically substantiated and experimentally determined. It has been found that pretreatment of freshwater fish flesh with 1.0% and 1.5% malic acid for 60 minutes provides soft, tender and juicy consistency, which corresponds to an organoleptic rating of 5 points. Changes in the fatty acid composition of preserves are mainly associated with an increase in the amount of polyunsaturated fatty acids that have been introduced with linseed oil, which is a positive factor. It has been found that, in comparison with the control sample, the level of all mineral elements in preserves with aromatic root vegetables is significantly increased, with fiber present, which indicates the expediency of introducing aromatic root vegetables into this product to enrich it with essential mineral and carbohydrate elements to obtain a high-value and healthy food product. Enriching the formulation of preserves made of freshwater fish with a variety of herbal additives increases their nutritional value and allows to get a product of high value enriched with such vital nutrients as carbohydrates, calcium, potassium, phosphorus, sulfur, sodium, magnesium, manganese, and iron. Aromatic root vegetables such as horseradish, parsley, and ginger have been found to exhibit antiseptic properties and delay the activity of microbial enzymes as they content phenol. Therefore, the use of aromatic root vegetables helps to inhibit the oxidation and hydrolysis of fats, which may be due to the presence of phenols in their composition.

One of the sources of sodium are meat products. Increased consumption of meat products and sodium intake leads to serious health problems. The task of reducing the dosage of sodium chloride in minced meat needs to be addressed. The partial replacement of table salt with sea salt will reduce the sodium concentration in products to 20%. It is established that this modification increases the moisture-binding properties of minced meat and lowers the dosage of salt in the mass of raw meat, which will reduce the level of harm to the body due to excessive consumption of sausages. It is proposed to introduce a bacterial preparation based on the strain Staphylococcus carnosus, which will reduce the amount of sodium nitrite in the finished products. Technology has been developed to regulate the composition of microelements in meat products by enriching them with a kelp extract. It was found that changes in the composition of minced meat can adversely affect the taste and physicochemical properties of the product, which is confirmed by expert studies. As a result of laboratory studies, it was found that a partial change of salt in the sea helps to improve the stability and physicochemical quality of minced meat (active acidity, water activity, moisture retention, and shear stress). According to the research results, the recipe of sausages recommended for implementation at the enterprises of the meat processing industry of Ukraine has been developed.

The expediency and prospects of using secondary fish raw materials from silver carp in the structuring agents technology have been substantiated. The combination of secondary fish raw materials and seaweed with different mechanisms of gelation has a targeted effect on the organoleptic, structural-mechanical, and physicochemical properties of food products. Accordingly, the expediency of adding the Black Sea alga cystoseira (2%) to optimize the mineral composition of the structuring agents and increase their jelly-making properties was established. Using experimental studies and multicriteria optimization, the optimal ratio of secondary fish raw materials – 40%; water – 60% and rational heat treatment – 150 min, at a temperature of 85 – 100 °C has been determined. An analysis and comparison of various preservation methods have confirmed the expediency of using the freeze-drying method of drying fish broths for the production of structuring agents, which allows to preserve of the original properties of the product, biologically active substances, reduce the mass of the dried product and increase the shelf life of the structuring agents. The optimal storage conditions have been determined – the ready-made structuring agents were packed in three-layer paper kraft bags and stored in a cool dry place at a temperature of 22 ±2 °C and relative humidity of no more than 70% for 12 months. It was found that the physical and chemical indicators of the structuring agents depend on the features of the structure, amino acid composition of fish collagen. The presence of the overwhelming number of high-molecular-weight molecules in the composition of the structuring agents and the preservation of the native structure determine high indicators of dynamic viscosity, dissolution time, and strength. As a result of the research, it was revealed that the high protein content largely depends on the amount of collagen in the secondary fish raw material, which has a positive effect on the gelling properties of the product being created.

The features of biochemical composition and properties of meat raw materials determine the need to find new technologies for its processing in order to obtain new products with high consumer properties. The current trend in the development of technology is the enrichment of raw meat materials with useful components with functional and technological properties that have a high biological value: apiproducts and products of plant origin. Due to its chemical composition, honey contains about 500 different biologically active substances, which are feasible to use as natural antioxidants in the production of semi-finished meat products. Different types of honey are characterized by high biological activity, dietary and medicinal properties. During heat treatment, meat marinated with honey marinade acquires new taste qualities, the appearance becomes brighter due to the caramelization of honey. The article presents the results of an investigation of the initial raw meat materials, honey, and marinated semi-finished product. We found that a decrease in the pH value of the marinated semi-finished product during a 24-hour treatment period provides meat stability to storage, since most bacteria grow at high pH values, while their growth slows down in acidic nutrient media with pH value below 6.2. Long-term marination makes it possible to obtain meat with increased water-binding and water-holding capacity and improved consistency and juiciness. The task of new product development requires new approaches and techniques in technology. The use of apiproducts, which have antioxidant properties, will allow avoiding the use of food preservatives and stabilizers of chemical origin. Therefore, honey can be used as a part of marinated meat products. The introduction of the active components of honey into the marinade will extend the shelf life and correct the organoleptic properties.

The article deals with a study of technological characteristics of avian fat. The fatty acid composition of goose, duck, chicken and turkey fats, comparative analysis of the differences in the content of saturated, monounsaturated and polyunsaturated fatty acids in each fat is described in a study. The characteristics of peroxide numbers of fresh greased fats and their deterioration under different oxidation regimes are presented in the article. Investigations were conducted in conditions of forced spoilage in a drying cabinet at t=102 °Ϲ, until the total spoilage was reached after 4 months storage at a temperature 4±2°С. Samples were native fats, fats with the addition of traditional broad-spectrum spices (nutmeg, black pepper, fresh garlic, mustard powder) and their oil extracts. According to the results of the study of peroxide number of avian fats, initial values have been determined that characterized fats as fresh and suitable for storage, and differences in the rate of oxidation processes depending on the storage conditions, fatty acid composition and the presence of natural antioxidants. It has been found that avian fats are spoiled in the following sequence: 1 – goose, 2 – duck, 3 – chicken, 4 – turkey, depending on the different ratio of saturated and unsaturated fatty acids and individual resistance to damage. The results of studies have shown that the induction period of fats with the addition of natural antioxidants significantly increases, compared with native fats. This suggests that natural antioxidants not only increase the nutritional and biological value, but also serve as a free radical trap for fatty acids. Thus, fats stored for 4 months in the refrigerator do not significantly change the value of peroxide numbers, without exceeding the threshold value of 0.05 mmols ½O/kg, with the exception of goose ones. Therefore, enrichment of fat with mixtures of spices and their fat extracts is an alternative way to maintain the quality of fat and extend the shelf life of meat products. Taking into account their non-toxicity and accessibility, spices of natural origin are the best and safest option for the stabilization of edible fats and products to which they are included in accordance with the requirements of the Ministry of Health of Ukraine.