Introduction. The problem of selecting a balanced, functional diet for athletes in the mountains requires modern and technological solutions. At the same time, in the available Russian- and English-language electronic databases of scientific and methodological literature there is no information on the practical use of freeze-dried products in the mountain expeditions and their effect on the human body.

Purpose. The purpose of the study was to evaluate the individual parameters of pulsometry and hand dynamometry of all participants in mountaineering camps under the conditions of testing combined cryopowders from Kompozit LLC, replacing standard dry rations on sports mountaineering routes from 1B to 3A difficulty categories.

Materials and Methods. The observation involved 4 people with different levels of mountaineering preparedness, who took part in the “Taganay-2022” mountaineering camp (Southern Urals). A random selection was made into the experimental group, in which the standard dry ration on sports routes was completely replaced with combined cryopowders (porridge sublimates). Registration of individual parameters of pulsometry and carpal dynamometry was carried out in the morning and evening daily using standard methods. Additionally, the subjective state was recorded in the survey format.

Results. The results of monitoring individual data made it possible to determine a positive trend between the maintenance of high performance throughout the entire period of training in an experienced mountaineer who used combined cryopowders instead of standard dry rations on sports routes.

Conclusions. Testing the product in mountaineering conditions showed the need to expand the information component in describing the properties of the product, expanding the instructions for use, indicating the necessary recommendations on methods of preparation, in particular the “correct” dilution of the dry product, and restrictions on the final ready-to-eat portion to avoid overeating and, as a result, digestive disorders.

Introduction. The antioxidants present in the diet have a significant impact on the prevention and progression of various diseases associated with oxidative stress. Intensive oxidative processes occurring in the human body lead to the formation of active oxygen forms, which can damage system cells and tissues. It was scientifically established that the endogenous protective system of the body can be supported by natural antioxidant compounds from food.  The phenolic antioxidants contained in the berries are a natural source for human health. However, the content of phenolic compounds in the berries and fruits and products of their processing is not sufficiently studied and described, and further studies are necessary to determine therapeutic doses of various products from berries and fruits for use in future clinical studies. Moreover, further experiments are needed to understand positive effects. Therefore, more attention should be paid to the development of well -controlled and high -quality clinical research in this area.

Purpose. The purpose of this article is to study the general content of polyphenols, flavonoids, anthocyans, antioxidant activity, mass fraction of dry substances, sugar and pectin, titrated acidity for fresh berries and fruits (cherry, black currants, blueberries and black -fruited mountain ash) and their various products: concentrated juice, cake and mashed potatoes.

Materials and Methods. The objects of the study were the fruits of the Vishni Volzhskaya cherry, the berries of black currants of the Bagira variety, the black-brown rowan of the Aronia Michurin variety and blueberries of the Blurop variety, and the products of processing fruits and berries in the form of puree, concentrated juice, powder from dried squeezes. The following research methods were used: a method for determining antioxidant activity using the color of free radicals, the Frap method, the method for determining the content of vitamin C and fiber. 

Results. The results of the study show that the preliminary processing of the objects studied enhances the antioxidant properties, the content of anthocyans decreases with prolonged exposure. Objects were distributed as follows, depending on antioxidant activity: squeezes, concentrated juice, purees, fresh fruits (control). In the system of linoleic acid, objects were distributed as follows: fresh fruits and berries, concentrated juice, purees, squeezes. 

Conclusion. The data obtained can be applied in the production of medical and preventive nutrition, the creation of functional food.

Introduction. The daily food ration for schoolchildren staying in boarding schools 24/7 includes breakfast, lunch, afternoon snack, dinner and a second dinner at 21.00. The calorie content of the diet exceeds the indicators specified in SanPiN 2.3/2.4.3590-20 for nutrition of children and adolescents by more than 1000 kcal. The calculation of the two-week menu was made on the basis of the order of the Ministry of Education and Science of the Russian Federation No. 454 dated May 24, 2017 “On approval of the norms and procedures for providing, at the expense of the federal budget, free meals, a free set of clothing, shoes and soft equipment for minors located in federal institutions for the prevention of neglect and juvenile delinquency "

Purpose. The purpose of the study was to develop a menu of diets for schoolchildren in boarding schools.

Materials and methods. The menu was compiled taking into account seasonality: spring-summer and autumn-winter. The age category of adolescents was selected from 7 to 11. Recommendations for the nutrition of children in boarding schools are distributed throughout the Russian Federation.

Results. The developed diet for schoolchildren living in boarding schools provides increased calorie content due to the introduction of dishes and side dishes from cereals, legumes and pasta, bread and bakery products into individual meals. The developed diets are enriched with a mineral-vitamin complex, the concentration of which is almost twice as high as the norms established by SanPiN 2.3/2.4.3590-20.

Conclusions. A variety of juices, fresh fruits and vegetables consumed year-round will help to form the vital functions of the body, and the introduction of meat, fish and dairy products into the diet will ensure growth and physical development.

Introduction. Solving the problem of maintaining balance, ensuring the protection and restoration of the skin microbiome is an urgent need due to the fact that diseases of the skin and subcutaneous tissue occupy the 4th place in primary morbidity among all diseases in the Russian Federation. An analysis of Russian and foreign publications devoted to the use of probiotics for the prevention and treatment of various skin diseases has revealed a problematic field of research – an insufficient degree of knowledge and systematization of information related to the use of probiotics in the composition of therapeutic and preventive cosmetics. 

Purpose. The authors set a goal to critically evaluate the prospects of using cosmetics based on probiotic microorganisms in bacterial skin diseases. To write this review, we used peer-reviewed articles, reviews and books, patents published between 2010 and 2022, in Russian and English. The studied collection of sources includes 126 publications published in domestic and foreign databases such as Scopus, Web of Science, SciHub, PubMed, Google scholar, eLlibrary and Cyberlinica. During the initial analysis of publications (annotation analysis), 76 sources were selected for relevance to the topic, which were further investigated in detail. 

Results. The analysis of the sources allowed us to study and systematize information about the nature and causes of atopic dermatitis, seborrheic dermatitis, acne and rosacea, to come to the following conclusions: mainly foreign cosmetics using metabolites or lysates of probiotic microorganisms are on the market, which does not allow achieving the desired sustainable effect. In this industry, import-substituting technologies for the production of active components of cosmetics are required. The use of probiotic microorganisms as part of local cosmetic therapy is a promising direction, as the positive effect of S.thermophilus, V.filiformis, E.faecalis, L.plantarum, B.longum, S.hominis and L.johnsonii has been proven. A correlation has been shown between the improvement of the course of diseases from the dose and the regimens of probiotic drugs. 

Conclusion. Further research areas include screening of probiotic microorganisms that are most suitable for the treatment and prevention of the above-described diseases, developing the basis of a cosmetic product that allows you to keep probiotic microorganisms in a viable state, developing technological solutions for the production and storage of innovative cosmetics.