bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research of weight and linear wear from resource indicators of cultivator paws hardened by combined method
Authors: Vasilenko M O , Rogovskii I L , Voinash S A , Maksimovich K Yu , Sokolova V A , Garbuzova T G , Meshcheryakov S A , Ariko S Ye 
Published: March 2021

Abstract
The article presents the results of theoretical and experimental studies of weight and linear wear from resource indicators of cultivator paws hardened by the combined method. It is established that in order to achieve an increased resource of cultivator legs, world manufacturers use special alloying materials, design features and technological methods of hardening, namely heat treatment, application of wear-resistant materials. The most commonly used methods for strengthening the working surfaces of parts are conventional hardening of medium-carbon, high-carbon and alloy steels. The hardness of the metal can be obtained in the range of 45 HRC for steel 45 and up to 65 HRC for steel 65G and alloy steels. To determine the change in the geometric parameters of the blades of cultivator legs during production tests recorded linear wear, weight wear and the radius of rounding of the cutting edge of the working bodies with an operating time of 8, 23, 42 and 54 ha. According to the results of linear wear of the wings of experimental cultivator paws during production tests, the materials that provide the best performance against abrasive wear were determined. As a result of the analysis of cultivator paws with a yield of 54 ha, it was found that the working bodies do not have visible damage and extreme wear and are suitable for further use. At the same time, measurements showed that the amount of wear on the width of the blade is 5.3–11.9 mm.
Results of semi-finished horse meat products research using protein fortifiers after heat treatment
Authors: Zhumanova G T , Shadrin M A , Grunina A A , Sultonov B A , Yakunina V N 
Published: March 2021

Abstract
Meat products play a key role in human nutrition. It is necessary to introduce and apply new, extraordinary approaches to solving a number of problems in order to intensify technological processes and create environmentally safe, harmless and optimal technologies for processing raw materials. In the production of meat products, the main requirement for raw materials is its balance in all ingredients, proteins, fats, carbohydrates, minerals, as well as the balance of proteins in amino acid composition. Horse meat fully meets this requirement. One of the most dynamically developing branches of the meat industry is the production of semi-finished meat products. The purpose of the research is to study semi-finished horse meat products using protein fortifiers after heat treatment. As a result of heat treatment, meat products acquire new characteristic taste, aromatic qualities, a dense texture and are better absorbed. In the steamed test products, the moisture content increased by 1.01%, the fat decreased by 0.87%, and the protein increased by 1.01%. In fried semi-finished products, the loss of vitamins was: thiamine (B1) - 30%, riboflavin (B2) - 10%, niacin (PP) - 15%, tocopherol (E) - 17.5%, A and C - 19.97 and 70 % respectively. In steamed semi-finished products, the loss of vitamins in niacin (B1) - 10%, riboflavin (B2) - 10%, niacin (PP) - 10%, tocopherol (E) - 12.2%, A and C - 15, 02 and 60% - respectively. The study of the mineral composition of fried and steamed semi-finished products showed that the loss of mineral substances was: potassium - 23.3 and 19.8%; sodium - 15 and 10.24%; calcium - 10 and 5.04%; magnesium - 21.9 and 12.75%; phosphorus - 20.1 and 10.7%; iron - 4.98 and 3%; zinc - 5.04 and 2.9%, respectively. In general, 0.81 is consumed from the amount of NAC products exposed to frying; steam treatment: 0.88.
Protein plant-based composites synthesized with transglutaminase
Authors: Kolpakova V V , Gaivoronskaya I S , Kovalenok V A , Slozhenkina M I , Mosolov A A 
Published: March 2021

Abstract
The aim of the work was the optimization of parameters for the synthesis of protein composites with an increased biological value from dry wheat gluten and pea, rice, amaranth, potato, oat concentrates with the enzyme transglutaminase. Using the program developed on the base of Monte Carlo counting method, taking into the amino acid composition of the concentrates, were determined ratios and amino acid score for the protein-protein composites: dry wheat gluten (DWG), concentrates: pea (PEC), potato (POC), oat (OC), rice (RC), amaranth (AMC). Composites of composition DWG / PEC, DWG / POC, DWG / AMC, POC / OC, PEC / RC, PEC / POC was enriched with deficient amino acids. Using the method of formol titration, was determined the influence duration, concentration of enzyme and hydromodule on the amount of amine nitrogen. Were used methods for planning and processing data in the Matematika and table Curve 3D programs, were obtained equations and optimal values were identified at which the amount of amine nitrogen during the synthesis remained minimal. In the DWG / AMC composite, the functional properties were 1.1–2.0 times higher than the properties of the initial protein products, indicating its greater efficiency in food.
Increasing amino-acid score of chopped semi-finished products
Authors: Khramova V N , Surkov D I , Gorlov I F , Khramova Ya I , Timofeeva A D , Korotkova A A 
Published: March 2021

Abstract
In today’s world diseases of alimentary etiology are common. They occur when there is insufficient intake of important essential substances, that include amino acids. Lack of essential amino acids can lead to serious disruptions in vital functions of body. Therefore, development of food products, balanced in amino acid composition, is the most important technological task of food production. Semi-finished products are one of the food groups, that in great demand among the general population. Therefore, these foods are often enriched with disease-preventing nutrients. In addition, creation of products with specified properties allows to reduce cost price due to introducing cheap plant materials into the product. The article provides data on effect of milk thistle powder and flaxseed flour on amino acid composition of meat stuffed chopped semi-finished products. Calculation of parameters of amino acid score and amino acid index in the products is presented. The results of organoleptic evaluation of experimental samples are also presented. During the study, mass fractions of proteins, fats and carbohydrates were determined. Organoleptic evaluation was carried out and energy value of each sample was calculated. Based on obtained data, a comparison was made between control sample and experimental samples in all parameters. In addition, it was found that a test sample containing milk thistle powder is capable of increasing protein content, as well as increasing amino acid index and amino acid score of the product.
Research of the influence of vacuum packaging on the quality and safety of meat semi-finished products
Authors: Nikulina E O , Ivanova G V , Kolman O I , Ivanova A N , Perestoronin D Y 
Published: March 2021

Abstract
The paper investigates the effect of vacuum packaging on the quality and safety of semi-finished meat products. The microbiological and organoleptic characteristics of a small-sized semi-finished product from pork pulp (goulash, pieces weighing 20-30 g) were studied, part of which was packed in GN 1/4 gastronorm containers, 0.5 kg each, the other part was packed in a vacuum package of 0.5 kg vacuum packer HVC-260T/1A (DZ-260/PD) using three-layer PA/PE bags (polyamide with polyethylene) with dimensions of 250x350 mm and a thickness of 90 microns. All semi-finished products were stored under the same conditions, in a refrigerator at a temperature of 4 °C. Comparative microbiological analysis showed that the number of mesophilic aerobic and facultative anaerobic microorganisms in semi-finished pork meat products stored using traditional technologies exceeds the semi-finished products stored in vacuum packaging. In terms of sanitary and hygienic indicators, the test products meet the requirements of TR CU 021/2011 and SanPiN 2.3.2.1078-01 for 8 days of storage at a temperature of 4 ± 2 ° C. In the investigated semi-finished products revealed shifts in pH (5.12-6.75) during storage and subsequent regeneration. Vacuum packing contributes to the preservation of organoleptic characteristics of meat semi-finished products, in comparison with semi-finished products that were stored traditionally. Analysis of the totality of quality and safety indicators for meat semi-finished products stored in vacuum packaging allows predicting an increase in shelf life up to 8 days. The shelf life of the investigated meat semi-finished products stored in vacuum packaging is 5 times longer than the shelf life established by SanPiN 2.3.2.1324-03.
Meat qualities of cross cobb-500 broilers grown with the use of the antioxidant dihydroquercetin
Authors: Kuzmina N N , Petrov O Yu 
Published: March 2021

Abstract

The Research is devoted to the study of the effect of the biologically active additive “Dihydroquercetin” in the compound feed on the indicators of meat productivity of broiler chickens. The results show that the increase in live weight of chickens that received dihydroquercetin in addition to the main ration was ahead of their control peers by 11,91-32,78 %. During the 40-day period of growing broilers, in the experimental groups with the addition of dihydroquercetin, they had a live weight of 15,22-50,51% more. From the beginning of fattening to the age of 40 days, the absolute and average daily growth rates showed a steady upward trend, then there was a decrease in the growth rate of chickens. The greatest effectiveness of the drug was noted at the beginning of the experiment, which indicates a positive corrective effect of the antioxidant on metabolism and an increase in the level of assimilation processes in the body of broilers. Up to 10 days of age, the chickens of the experimental groups receiving dihydroquercetin had higher relative growth rates, which obviously characterizes their better adaptation to the conditions of the experiment. The magnitude and nature of changes in the relative increase in live weight of broilers with longer cultivation up to 60 days of age indicate its inexpediency-even when using the drug dihydroquercetin, due to the unprofitability of its further use, and the lack of recoupment of costs for the purchase. In general, the higher studied indicators during the experiment were observed in broiler chickens of the III-IV experimental groups, the best result was shown in the group of birds receiving dihydroquercetin Supplement at the level of 1 g/100 g of feed, which allows us to consider it optimal.
Economic efficiency of producing a complex powdered concentrate for the production of soft drinks
Authors: Gurskikh P S , Yanova M A , Sharopatova A V , Roslyakov Yu F 
Published: March 2021

Abstract
The article deals with the issues about economic efficiency of producing a complex powdered concentrate from grain and fruit and berry raw materials for the producing soft drinks of high nutritional value. The main indicators that characterize the efficiency of producing finished products are calculated. Calculations of the production efficiency of powdered concentrates showed that the profit from the sale of 1 kg of powdered concentrate was from 272.3 to 406.5 rubles, and the profitability of new products is from 40.3 to 42.7 %. Production of powdered concentrate from textured grain and fruit and berry raw materials is expedient and economically profitable production, due to small investments and low production costs.
Regularities of the transition of substances from permeate to molasses in the process of lactose recovery
Authors: Khramcov A G , Lodygin A D , Anisimov G S , Shkola S S , Dykalo N YA , Eremina A I , Dinyakov V A 
Published: March 2021

Abstract
Crystalline lactose is produced all over the world in large quantities. The main raw material used for crystalline lactose manufacturing is permeate obtained by ultrafiltration of milk and whey. It is believed that it is better to use sweet whey permeate, but the modern world has adapted to use other sources rich in lactose. Molasses is a by-product of crystalline lactose production. Its composition varies depending on the characteristics of the feedstock, the parameters of crystallization, the use of various methods required in the technological process. In foreign countries, molasses is considered as complex raw material, but at the same time it is used for various purposes, used for feeding animals and fertilizing soils, as a nutrient medium for microorganisms’ cultivation. In Russia, molasses as a by-product of dry lactose manufacturing is practically not widespread; it was mainly used to obtain feed additives for animals. Food and pharmaceutical lactose production development gives an impetus to start studying and creating new products based on dairy molasses. Molasses has a significant good quality, which allows it to be used as a raw material in the development of functional products based on lactose and its derivatives.
Development of the prototype of a geo-information web system for dynamic visualization of forest fire hazard
Authors: Kosov I V , Yakubailik O E 
Published: March 2021

Abstract
The article examines the prototype of an interactive system to display fire hazard in the forest during the fire season, prototype’s main characteristics and development methods of web GIS technologies. The proposed approach tracks changes in a special web map showing the state of fire danger in the forest based on the daily calculation of the fire hazard class under the current weather conditions. The analysis of data on forest types and frequency of fires proves that the calculations should include an increase in the natural fire hazard class concerning grass allotments in spring and autumn, as compared with summer. Changes in the weather conditions over time cause the map of a given area at a given point and time to change in accordance with the fire threats for these allotments. The developed interface for displaying the fire hazard data allows one to select the area under study and time range, as well as configure the data presentation template. The technological means used were the methods of Internet systems and geoportals producing geographic information, modern web technologies, libraries and services, including tools for dynamic representation of data of screen forms in web templates.
Smart analysis of agricultural land use with NDVI at Kuraginskoye agricultural experimental production facility
Authors: Erunova M G , Simakina A S , Yakubailik O E 
Published: March 2021

Abstract
The article presents the results of a geospatial analysis of the NDVI distribution for the 2020 growing season for the territory of the Kuraginskoye Agricultural Experimental Production Facility, which is currently part of the Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of Russian Academy of Sciences. A geospatial database of the Kuraginskoye Facility has been created, which stores an electronic map of fields and a time series of vegetation indices for each field for 2020. The initial data are cloudless satellite images of the PlanetScope constellation with a spatial resolution of 3 m. The average NDVI value was calculated for all fields of the Kuraginskoe farm using all available satellite data. For each field, graphs of the dependence of the distribution of the vegetation cover NDVI index for the vegetation period of 2020 were prepared and analyzed.
Influence of azoxymer bromide on the cellular composition of the spleen in experimental infection of T. spiralis
Authors: Zhdanova O B , Okulova I I , Rudneva O V , Makarova N A , Napisanova L A 
Published: March 2021

Abstract
The experiment used white mice, which were divided into 4 groups. The first group of mice was injected with a saline solution with 0.04 mg of Trichinella antigen obtained by the Magat method subcutaneously, the second group of mice was injected with azoxymer bromide (polyoxidonium) at a dose of 0.004 mg/mouse, the third group was infected with Trichinella larvae without preliminary administration of drugs, group 4 served as a control. A week after the last injection of drugs, mice were infected with invasive Trichinella larvae at a dose of 40 larvae/animal. Evaluation of the protective properties of polyoxidonium in laboratory models was carried out by determining the intensity of invasion in studies of all muscle groups of the animal by the method of peptolysis and histological material to assess the cellular composition of the spleen. The protective effectiveness of polyoxidonium was 99.43%. The rearrangement of the structure of the spleen under the influence of an immunostimulant indicated a high degree of reactivity of the spleen of animals in response to the introduction of polyoxidonium (the ratio of red and white pulp and their cellular composition changes).
Mutations linked with the inherited anomalies in the Russian Aberdeen Angus sires
Authors: Konovalova E N , Romanenkova O S , Volkova V V 
Published: March 2021

Abstract
The purpose of research was to estimate of the gene load caused by the harmful mutations linked with the hereditary abnormalities of Aberdeen Angus cattle breed located in Russia. The object was the sires (n=3960) of five Russian populations which have been genotyped on AM, OS, DD and M1 genetic defects by previously created techniques. The genotyping showed the existence of AMC-, OSC-, DDC- and M1C-individuals among the investigated groups. The AMC-bulls have been revealed in four groups with the frequencies of 1.1-4.9%, the DDC- in all investigated livestock at 1.8-10.4%, the OSC- - in the two groups with 0.1 and 1.0% and the M1C- - in one population with 1.9%. We have also tracked the raising of AMC- and DDC-individuals in the later generations of two sire bull populations. In population No. 1 the AMC- and DDC-individuals frequencies have raised on 1.1 and 8.3%, respectively. In population No. 2 these differences were 2.2 and 2.7%. The monitoring of the genetic anomalies distribution in period 2013-2019 has shown the stabile percent of AMC, OSC, and M1-bulls, but for the DD genetic defects the growth tendency has been watched (from the absence in 2013 to 10.4% in 2019).
Investigation of the soil cover ecological state under the different geomorphological elements conditions
Authors: Batrachenko E A , Dolgopolova N V , Dudkina T A 
Published: March 2021

Abstract
The soil is the result of the interaction of a complex of soil-forming factors. In the process of agricultural use, anthropogenic impacts on the soil lead to its significant properties, increase the degradation of its potential and effective fertility, which affects the growth of dehumification, overconsolidation, decalcification and loss of structure. In addition, the agrogenic impact is augmented by climatic conditions and the specifics of the geomorphological structure of the territory. The high degree of plowing of the territory of the Kursk region and the differentiated relief have led to the development of intense erosion processes, which lead to a decrease in the productivity of agricultural landscapes. It is necessary to study in detail the regional specificity of the ecological state of the soil cover under the conditions of different geomorphological elements in order to distinguish between the natural degradation of slope soils and their agrogenic transformation.
Biological and acid leaching of low-grade sulfide concentrate containing Cu and Ni at different temperatures
Authors: Yanishevskaya E S , Melamud V S , Bulaev A G 
Published: March 2021

Abstract
In this study, the bioleaching of low-grade nickel-copper concentrate was carried out using the nutrient medium containing yeast extract (YE) at temperature range of from 40 to 60°C in order to study the dependence of biooxidation rate and Cu and Ni extraction levels on the temperature and the presence of organic compounds. Mixed culture of the strains Sulfobacillus thermosulfidooxidans, Acidithiobacillus caldus, and Acidiplasma sp., moderately-thermophilic acidophiles, which oxidize sulfide minerals, was used in the experiments. Temperature and organic carbon source were shown to affect bioleaching. At 40−50°C, the influence of YE addition was insignificant. At 55 and 60°C bioleaching depended on YE presence. Nevertheless, microbial activity affected mainly iron leaching and allowed maintaining comparatively low pH of medium. Both Cu and Ni extraction rates almost was not affected by biooxidation activity. Thus, the leaching of the base metals form the concentrate was mainly determined by abiotic factors (acidity and temperature). Regardless of this fact, bioleaching may play a significant role for processing of similar sulfide concentrates, since to maintain favourable pH, abiotic acid leaching could require a large amounts of H2SO4, while biooxidation provides sulfuric acid generation.
Analyzing effects of dust from mining enterprises on the environment
Authors: Murzin M A , Gorlenko N V 
Published: March 2021

Abstract
The relevance of research is due to the widespread intensification of mining processes in the territory of the Irkutsk Region and our country. The issue of assessing the negative impact on the environment is primarily due to the limitations of individual methods, which give only a partial and concise insight into the actual state of violations. The assessment procedure consists of the primary determination of the causes and sources of dust emissions, followed by the identification of areas of dust distribution during mining and zoning. In our case, we used the method for estimating the index of air pollution using dust fraction indicators, assessing the dust load on the main employees of mining enterprises, and by means of economic assessment of environmental damage. As a result of the atmosphere pollution index estimation, it was established that the total value of pollution from dust was higher than the “average” indicator. The research results prove the special effect of dust in environmental pollution. The damage from dust emissions is caused to all components of the environment on large areas, including human health.
Separate and combined influence of Origanum
vulgare and Thymus serpyllum phytoextracts at the rye grain bioactivation
Authors: Lesovskaya M I , Babaeva K A 
Published: March 2021

Abstract
The Thymus and Origanum extracts were obtained at different temperature, separate and combined biological effects of them were investigated. There were shown the influence of this substances at the rye grain bioactivation taking into account their antioxidant and membrane-protective properties. The antioxidant activity of Thymus extracts, but not Origanum, directly depended on the temperature of extraction (30 or 80°C). When “hot” Thymus extract (80°C) used the reduction degree of chemiluminescence was 3…6 times higher than in the control and 2…3 times higher than the oregano extracts used. The results are in good agreement with the data on the assessment of extracts membrane-protective activity. Under the influence of individual preparations of Thymus, as well as the combined preparation of Thymus+Origanum (1:1), the osmotic resistance of the liposomal suspension increased. Under using combined phytoextracts of oregano and thyme (1: 2; 2: 1; 1: 1), the dynamics and energy of germination exceeded the control level significantly. The best result was observed at a 1:1 ratio, when the number of germinated seeds was more then in control by 4 times by the 12th hour of exposure, and the optimal length of germinated seeds was formed by the 10th hour. Thus, using of the combined preparation of thyme + oregano (1: 1) allows to halve the longest stage of plant raw materials preparation for obtaining a multi-grain flourless bakery product.