[The identification of the primal wine production with the protected designation of origin with the appliance of cluster metrics].

The article considers the guidelines of the choice of identification criteria, allowing to verify and confirm the geographical name of the origin of domestic primal wine production, thereby confirming their legal status. A priori the production of wine with protected designation of origin includes the use of certain raw materials with predetermined organoleptic and physical-chemical characteristics, which can be confirmed by respective tests. The aim of the work was to develop a robust differentiating criterion that allows one to determine the authenticity and origin of wine materials relative to the standard. Material and methods. The authors presented a clustering technique, which allows on the basis of test results and developed digital identification criteria to verify the origin of wine materials from Krasnodar and Rostov-on-Don regions. As a criterion, the data from the analysis of mineral and trace element composition of primal wine production in these regions have been used. Results. The article postulates following: the main concern of clustering, methods of identification from the perspective of food production using food regression model, information on fundamental clustering metrics, fields of appliance according to the approach of the identification of the product with indication of geographic place of origin. Based on the results of the analysis of the content of 21 mineral substances (10 in µg/l and 11 in mg/l), a regressive model of the primal wine production was built. Based on this model, cluster centers were identified. The resultant model allows us to distinguish the two mentioned wine regions and form a spatial digital discrimination criterion based on the proximity to one of the established cluster centers. Conclusion. The proposed model can be adapted to identify the production of different branches of the food industry.

Effects of critical fluctuations of storage temperature on the quality of dry dairy product.

Whole milk powder (WMP) is a universal raw material component that can overcome the problem of seasonality of raw milk. It can be used to provide high-nutritional products to remote areas experiencing a raw milk shortage. Its long shelf life depends on the conditions of storage and transportation, which are recommended to be carried out in a range from 0 to 10°C. At higher temperatures, the quality of WMP deteriorates because of a substantial increase in the degradation of fat and protein fractions. A range of low negative temperatures for storage have not been systematically investigated. Previous studies have shown that freezing WMP results in protein denaturation, crystallization of lactose, and extraction of free fat, all of which reduce the quality characteristics of the product, including deterioration of solubility, quick rancidification, and microbiological changes. However, these previous studies did not simulate the possible situations of transportation and storage of milk powder at low negative temperatures that occur in practice. Given the volume of transportation, distances and climatic characteristics of transportation routes play an important role in WMP preservation. In this study, we simulated storage and transport of WMP at -20°C. The samples were periodically thawed to 10 and 20°C and examined for physicochemical, functional-technological, thermodynamic, microbiological, and organoleptic parameters. Based on our results, storage of WMP at -20°C for 40 d did not have a significant effect on its qualitative characteristics. We observed some compaction of product structure and clustering or clumping, which was reversible by slight mechanical impact. Artificial contamination of the packaging surface with yeast and molds, followed by thawing of the samples, indicated the absence of the contaminants, which was explained by possible redistribution of moisture in the system.

[Consumption of carbohydratecontaining beverages and their contribution to the total calorie content of the diet].

The article presents data on the frequency of consumption of carbohydrate-containing sweet carbonated drinks by the population of the Russian Federation and their contribution to the overall caloric intake of the diet. Questioning 11 850 people of different ages (from 12 to 60 years) and sex in all eight Federal Districts of Russia has been conducted. The frequency of food consumption has been studied, and in parallel dietary intake has been assessed using 24-hour recall method. The survey showed a fairly low frequency of consumption of sweet carbonated beverages and no significant differences in the frequency of their consumption by the population of various federal districts of Russia. With a certain frequency from 55.5 to 67.3% of the population consumed sweet carbonated drinks, while 18.1-20.9% of the respondents did not consume them more often 1-3 times a month, and 1.3% of the surveyed (from 0.3% in the North- West to 3.9% in the Southern Federal District) - 2 times a day or more often. Analysis of the data obtained showed that the contribution of the carbohydrate component contained in sweet carbonated beverages, even when consumed frequently (5-6 times a week) did not exceed 3.71% of the total diet calorie intake and not more than 7.1% of the caloric value of carbohydrates' intake.

[Development of technology and study of the immunobiological properties of a sour milk beverage based on camel milk].

The article presents data on the technology of production of a fermented milk product based on camel milk and the evaluation of its immunotropic properties in еthe experiment on 60 male mice F1 (CBAxC57Bl/6) with an initial body weight 17.8±0.1 g. To simulate immune suppression, mice were injected cyclophosphamide intraperitoneally (125 mg/kg b.w.). The fermented milk product was daily administered orally in a volume of 0.5 ml/mouse for 30 days (n=30). The animals of the control group (n=30) received a similar amount of distilled water. The study of the immunotropic activity of a fermented milk drink on the model of immune deficiency showed that a 30-day administration to mice caused an increase in the number of antibody-plaque-forming cells (IgM-AFC) by 1.3 times in spleen of mice (32.4×103 vs 24.7×103 per organ in the control group). The analyzed drink strengthened the effector phase of the response of the cellular response to erythrocytes of the sheep. Thus, in mice treated with distilled water (control group), the reaction index was 7.80%, while in mice of the main group it increased by 70% and amounted to 13.26%. The use of a fermented dairy product in immune-deficient mice resulted in a significant (by 63%) increase of antioxidant activity of blood plasma. At the same time, the imbalance in the functioning of antiradical protection enzymes (catalase and superoxide dismutase) reduced sharply, indicating an increase in the adaptive capacity of the organism, disturbed by the introduction of an immune suppressive compound. The obtained data indicate a pronounced immune modulating and antioxidant effects of the fermented dairy product based on camel milk, which can be used in the prevention and in complex therapy of secondary immune deficiencies and inflammatory diseases.