Food safety is one of the most pressing issues directly related to ensuring public health and welfare in any state. The article is devoted to biosensors used in the food industry. Biosensors are devices used to analyze and diagnose substances by converting a biological response into a signal. Depending on the type of biomaterial, there are biosensors based on enzymes, microbial cells, tissue cultures, DNA, immunocomponents, and organelles. Biosensors and analytical procedures based on them have long gone beyond the scope of laboratory research and have occupied a stable niche in everyday practice. Biotechnology, food industry, medicine, ecology – this is not a complete list of possible areas of their application for civilian purposes. Potentially, biosensors are capable of performing sensitive and specific detection of harmful effects, which in general determines the prospects for the development of this direction. An analysis of various detection methods, parameters and types of the described biosensors and the possibility of their practical use are given in the review.

   Ensuring the security of facilities today is a priority for many companies and manufacturing enterprises. Security video surveillance systems carry out constant monitoring of any residential, office space, as well as industrial facilities and the territories adjacent to them. Despite the wide variety of security systems and complexes currently on the market, a very small part may well be relevant for use in apartments and small offices for a number of reasons, including financial ones. The solution that is proposed in this article, in fact, provides for the possibility of using those hardware components that were originally involved in solving a different range of tasks. So, for example, the functions of the security system could be taken over by a multimedia server, which is used at home for storing and distributing videos, musical compositions and photographs.

   The article is devoted to encapsulation and the choice of polymer for the material of capsules. Microencapsulation is the process of protecting encapsulated substances. A wall is formed around the encapsulated substance, the properties of its composition are set in order to protect the encapsulated material. In the encapsulation process, there are many technologies, these are co-extrusion, spray drying to obtain capsules, spraying, inclusion in a matrix, gel encapsulation, fluidized bed encapsulation, the capsules are obtained using the drip method. To substantiate the selected encapsulating material, carried out according to the purpose of mobility, capsule formed pectin in concentrations of 1 %, 2 %, 3 %, alginate in concentrations of 1 %, 2 %, 3 %.The main task of the experiment at this stage was to obtain capsules of the maximum spherical shape, since the correct shape of the capsules leads to a more effective result. Figure 1, 2 shows capsules obtained from different concentrations of pectin, alginate. Images were obtained at a magnification of 4/0.1X on a Microscope XS-2100 microscope.

   This article explains the system of inhomogeneous systems. Methods of separation of liquid inhomogeneous systems in the processing industry are analyzed. The characteristics of the equipment used in the separation of liquid inhomogeneous systems are given. Considering these equipment, the most economical and high-performance type of equipment was chosen. In general, in the processing industry, the task of dividing liquid inhomogeneous systems into components often arises. At different production sites, it is mandatory to separate heterogeneous systems. In industry, inhomogeneous systems are divided into separate phases to purify the gas or liquid phase from polluting particles, to separate valuable products suspended in the gas or liquid phase. Advantages of centrifuges over other equipment: high intensity of the process due to the large driving force, lack of auxiliary equipment, the possibility of mechanization and automation of the process.

   The article describes the design of an oil press for the production of vegetable oil when studying the processes of pressing and grinding in order to increase the yield of linseed oil. Flaxseed oil is very useful because it is the richest source of alpha-linolenic acid, important for the heart, which belongs to omega-3 polyunsaturated fatty acids. It reduces cholesterol and is preventive for heart diseases, reduces high blood pressure, and also increases the absorption of iodine. It can be used in salads, snacks, cereals, when baking bread and other dough products. This article substantiates the possibility of using an oil press in research centers, small and medium-sized enterprises of the food industry in the production of vegetable raw materials in order to effectively use flaxseed.

   The article discusses the influence of starter cultures on the quality of meat for semi-smoked sausages. Attractive attention to biologically active, organoleptic and physico-chemical results includes fermented beef meat to produce a quality finished product. The use of starter cultures significantly affects the tenderness, juiciness, nutritional value of raw materials, the formation of the required level of structure and adhesive ability, improves organoleptic characteristics due to the effect of starter cultures on muscle tissue components. According to the results of experimental tests, a technology for the production of semi-smoked sausage using starter cultures is provided. To study the impact of various factors affecting the process of fermentation of beef meat raw materials, mathematical modeling was applied. Due to the mathematical calculation, the appropriate raw meat fermentation parameters were selected, which depend on the product, improve the nutritional quality, and also suggest a ripening periodfor the finished product.

   In the modern information world, where it is important to stay in touch at any time, as well as access to relevant information, mobility is especially important, and, as a rule, the use of mobile devices with mobile applications. Currently, information technology development of applications for mobile devices is actively developing. The article provides a classification of mobile applications in terms of use and in terms of their structure. And this article discusses the significance of mobile devices and applications. Some tools for creating mobile applications are analyzed, examples of their use are given. Shows the process of developing mobile applications. In addition, for programming mobile applications provided Front-end system design and Backend. Characterized by several types of testing mobile applications. The article also provides an analysis and review of existing tools for developing mobile applications.

   The relevance of the idea of a "Smart Greenhouse" as an independent unit and as part of the Smart Home or Smart City project is very high today, when we no longer just learn about the Internet of Things from the blue screens of our gadgets, but already partially use IoT elements at home. True, it still looks a little like a single well-coordinated system of operation of all our devices, but the need has already matured. So, for example, already now among the population of our country there is an acute unmet need for some kind of "autonomous home assistant" to care for their crops both in suburban greenhouses and in apartment "flower beds". At the same time, the management of this system should be understandable to an ordinary user, be socialized in the modern information space (social networks, e-mails, etc.). And the system should be inexpensive to purchase.

   This article discusses the issues of life support planning in an emergency situation, the coordination of the actions of its organization and support services, determining the need for life support resources and the timeliness of life support measures. In emergency situations, measures are taken to support the population, improve the health and functioning of people. These measures include: providing the population with food, drinking water, as well as available means of daily use, protecting food from bacteriological, chemical, radioactive contamination, water supply systems and reservoirs. Public utilities, medical support, sanitary inspection of the population, work on disinfection of equipment, transport, territory, providing reliable information to the population, providing moral and psychological assistance and providing the population with the opportunity to work.

   This article examines the advantages of introducing professionally oriented meat bars into food production for children and adolescents of school age who are in significant demand in food. In our modern country, the need for timely and high-quality product development is being considered in order to increase production volumes and effectively develop meat production, therefore meat bars made from meat should be supplemented with new equipment and modern technologies, as well as innovative products in order to increase efficiency. The development of meat loaves, the growing demand and needs of the population for functional products allow us to develop technologies and produce functional products. The use of environmentally friendly raw materials allows domestic and foreign manufacturers to create competitive products.

   The article describes possible floods in the city of Semey and methods for their prevention. Considered preventive measures to prevent floods provide reliable protection against accidents, catastrophes and natural disasters, objects of the territory under consideration. The main stages of the response of state bodies to emergency situations are presented, including the creation of territorial management systems, forces and means of state and operational response and maintaining their readiness at a high level. Effective mechanisms for anti-crisis management have been developed, including the improvement of public administration in the field of emergency situations and civil defense, through the optimal distribution of responsibilities and powers between levels of government. The territories of the flooded areas of Semey were analyzed, potential threats and dangers for settlements were identified, ways to reduce their threat to the population, property and the environment were considered.

   Mathematical models of aggregates of complex technological complexes and problems of constructing a system model of a complex, i.e. a structured model, are studied, an approach to constructing a system of models of a technological complex based on various information based on the methodology of system analysis is formulated. A clear production system
has been built – mathematical models of rectification and benzene columns of the main units of the benzene complex. In the work it is established that according to the proposed approach it is advisable to build composite models on these aggregates, i.e. the number of products at their output (benzene, raffinate, heavy aromatics) is determined by constructing aggregate regression models, and product quality indicators are fuzzy. The influence of aromatic hydrocarbons contained in the reformate on the average octane number of benzene is the main indicator of product quality, constructed in the form of a linguistic model based on a logical rule of conditional generalization and a knowledge base.

   This article investigates a variant of an active queuing system in relation to an industrial enterprise, in the production process of which unique equipment is used. The reduction of the total costs of paying for the labor of production personnel, for the creation and operation of workplaces at a given intensity of the flow of applications is achieved by optimizing wages. The mathematical model of optimization of the production process includes a model of employee behavior in labor processes, the qualification characteristics of which are identified in the conditions of the local labor market. The paper considers one of the classes of queuing systems and the possibility of reducing the number of jobs by stimulating higher productivity of workers. In the considered production situation, there is a possibility of reducing the number of jobs by stimulating higher productivity of workers.

   This article analyzes meteorological factors that pose a danger to human life, types of avalanches and determining landslides. The measures taken to prevent avalanches and ensure the safety of the population and economic facilities are described. The mechanisms of formation of snow avalanches are formed as a result of freezing of the particles of the snow cover of the surface. Under the influence of the sun, wind and heat, an ice crust forms on the snow surface and as a result of these phenomena, snow crystals. The stagnant mass formed as a result of a dense and heavy layer, when sliding down, carries with it a snow cover: the speed of "snow layers" can reach 200 km/h. About measures in which the possibility of movement of "snow plates" depends on the layering of the snow mass, that is, on dense and stagnant snow.

   Recently, more and more new-generation food products have appeared on the domestic consumer market, most often referred to as functional in foreign practice. Unlike traditional products, such products are characterized not only by nutritional value, but also by a positive physiological effect on the human body. One of the main principles of enrichment is the choice of the food system to be enriched. With the growing popularity of a healthy lifestyle, which has recently been gaining momentum, the production of juices, nectars and juice drinks for functional purposes is relevant. In this regard, the aim of the work was to study the possibility of using natural structure-forming agents pectin and carrageenan in the preparation of functional drinks. The practical significance of the work lies in the development of functional fruit and vegetable drinks with excellent consumer properties for their introduction into the menu of catering enterprises of the city and the region.