THE NORTH CAUCASUS ECOLOGICAL HERALD
Extract from the Register of the Mass Media PI No. FS 77-82390 dated December 8, 2021
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Scientific and Theoretical Journal
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2024, Vol. 20, № 3
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Founded in 2005
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Published quarterly
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C O N T E N T S
Applied Ecology
DIAGNOSTICS OF MINERAL NUTRITION CONDITIONS OF SOYBEAN PLANTS WHEN APPLYING MINERAL FERTILIZERS ON AGROCHERNOZEM OF THE KRASNOYARSK FOREST-STEPPE
E.N. Belousova, O.A. Ulyanova, A.A. Belousov, C.S. Barova
Federal State Budgetary Educational Institution of Higher Education «Krasnoyarsk State Agrarian University», Russia, Krasnoyarsk
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Abstract. The specific soil and climatic features of the agricultural zone of the Krasnoyarsk Territory have a significant impact on the content and degree of availability of mineral nutrition elements. In this regard, the application of complex phosphorus-containing fertilizers is a necessary condition for stabilizing the productivity of agricultural crops. The field station was established in the center of the Krasnoyarsk forest-steppe (N56.430°, E 92.915°) at the Minderlinskoye Educational Farm. Register of studied options: 1) control; 2) sulfoammophos SAF (10) + Ks (60); 3) sulfoammophos SAF (20) + Ks (60); 4) ammophos AF (20) + Ks (60); 5) ammophos AF (40) + Ks (60); 6) nitroammophoska NAFC (10) + Ks (60); 7) nitroammophoska NAFK (20) + Ks (60); 8) phosphate rock Rf (1 t/ha) + ammonium sulfate Na (100) + potassium sulfate Ks (60); 9) phosphate rock Rf (1.5 t/ha) + ammonium sulfate Na (100) + potassium sulfate Ks (60). The agrochemical background of the soil was assessed by a low supply of nitrate nitrogen and a high supply of mobile phosphorus. The introduction of physiologically acidic mineral fertilizers contributed to a shift in the reaction of the environment to the “slightly acidic” level. Their influence was reflected in increasing the availability of mineral nitrogen during the period of growth of soybean green mass, but did not turn out to be effective in relation to the processes of release of phosphorus-containing compounds. The ratio between the content of mobile phosphates and nitrate nitrogen diagnoses the balance of nutrients in the soil and can be used to adjust the conditions of mineral nutrition of plants. An assessment of the productivity of soybean green mass revealed the advantage of the “sulfoammophos SAF (20) + Ks (60)” option.
Keywords: soybean, mineral fertilizers, tissue diagnostics, nitrogen, phosphorus, potassium
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AGROECOLOGICAL IMPORTANCE OF PHACELIA IN AGROCENOSES OF THE CENTRAL CHERNOZEM REGION
E.V. Panin, E.A. Vysotskaya
Federal State Budgetary Educational Institution of Higher Education «Voronezh State Agrarian University named after Emperor Peter I», Russia, Voronezh,
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Abstract. The article provides an evidence-based analysis of the use of phacelia as a green manure crop on typical chernozems of the Kashira district of the Voronezh region. The state of the soil cover was taken into account not only after planting the green manure crop, but also during its growth, as well as before the introduction of short grain crop rotation using phacelia as a green fertilizer. Incorporation of green manure to depth increases the reserves of productive moisture in the arable layer, as well as in the meter-thick layer. At the same time, moisture retention is noted even in dry years. Incorporation of phacelia helps to normalize the pH level of typical chernozem. The plant, in the process of mineral nutrition, extracts exchangeable calcium and magnesium cations from the lower layers of the soil, and after its decomposition, the exchangeable hydrogen of hydrolytic acidity is displaced and replaced with calcium and magnesium cations. As a result of plowing green fertilizer, compensation is noted for the regular removal of organic matter and mineral nutrition elements with the crop yield, while in the control variant there is a slight decrease in these indicators. In general, the cultivation of phacelia leads to stabilization of the state of the soil component, and with constant inclusion in the crop rotation – to an increase in the productivity of the agroecosystem.
Keywords: ciderates, phacelia, green manure, grain crop rotation, soil component, typical chernozem, agroecosystem
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INFLUENCE OF SOLUTIONS BASED ON MODIFIED BENTONITE ON THE ENERGY OF GRAIN GERMINATION
A.V. Sumina1, V.I. Polonsky2, O.V. Komarova1, E.N. Petrova1, R.A. Chudogasheva1
1Federal State Budgetary Educational Institution of Higher Education «Khakass State University named after N.F. Katanov», Russia, Abakan
2Federal State Budgetary Educational Institution of Higher Education «Krasnoyarsk State Agrarian University», Russia, Krasnoyarsk
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Abstract. The purpose of the study was to optimize the pre-sowing treatment regimes for grain crop seeds using activated bentonite modified with different amino acids. The experiments used grains of soft spring wheat (variety Altaiskaya 75), spring barley (variety Biom) and spring oats (variety Rovesnik), grown in the Altai region of the Republic of Khakassia in 2023. To study the effect of pre-sowing treatment on grain germination, model systems were used ( aqueous suspensions of activated clay) with clay concentrations of 0.1, 0.5 and 1.0 %: 1) sodium form of bentonite; 2) activated clay, modified with glycine; 3) activated clay, modified with aspartic acid: 4) activated clay, modified with lysine. Analysis of the effect of aqueous suspensions of Na+ activated bentonite on the germination energy of wheat, barley and oats during pre-sowing treatment of grain revealed a positive effect compared to the control. The optimal pre-sowing treatment regimes according to the criterion of «maximum germination energy» are: for wheat, an aqueous suspension of Na+ activated bentonite at a concentration of 0.5% with a 5-minute grain treatment or at a concentration of 0.1 or 1.0% and a 30-minute exposure; for barley and oats - an aqueous suspension of Na+ activated bentonite, modified with aspartic acid in a concentration of 0.1 or 0.5% when processing the grain for 5 minutes in a concentration of 0.1 or 0.5% (barley), 0.5 or 1.0 % (oats) or for 30 minutes at a concentration of 1% (barley), 0.1 % (oats).
Keywords: spring soft wheat, spring barley, spring oats, germination energy, activated bentonite, glycine, aspartic acid, lysine
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BIODEGRADATION OF OIL AND OIL PRODUCTS USING THE STRAIN ASPERGILLUS NIGER AM1
A.Z. Mindubaev1, E.V. Babynin2, V.V. Tutuchkina3
1Federal State Budgetary Educational Institution of Higher Education «Kazan National Research Technological University», Russia, Kazan
2Federal State Budgetary Scientific Institution «Federal Research Center «Kazan Scientific Center of the Russian Academy of Sciences», Russia, Kazan
3Federal State Budgetary Scientific Institution A.E. Arbuzov Institute of Organic and Physical Chemistry of the Federal Research Center «Kazan Scientific Center of the Russian Academy of Sciences», Russia, Kazan
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Abstract. Biodegradation of crude oil from two oilfields located in Tatarstan by Aspergillus niger AM1 strain VKM F-4815D was studied. The initial crude oils had strong compositional and property differences. Visual observation and chromatomass spectrometry revealed that crude oil undergoes partial degradation, but cannot serve as the sole source of carbon - the culture medium must contain glucose. As a result of A. niger activity, the crude oil composition is altered - decreasing the total amount of components while increasing the oxidised, oxygen-containing components. This indicates the presence of biodegradation. An interesting fact to note is the modification of consistency, solidification of the crude oil under the influence of A. niger. This allows us to consider the possibility of using the strain for bioremediation of crude oil-polluted soils and waters. Similarly interesting is an earlier discovery of the strain's ability to metabolise a number of toxic phosphorus compounds, including even white and red phosphorus. Consequently, the strain may qualify as a fairly versatile degrader of pollutants. However, most organic solvents have a noticeable toxic effect, inhibiting growth in the presence of glucose and failing to become carbon sources in the absence of glucose. Contrary to crude oil, they are individual chemical compounds. Solvents can be arranged in a sequence of toxicity growth: ethyl acetate → ethylene glycol → isooctane → n-hexane, 1,2-dichloroethane → isopropanol → acetonitrile, benzene → paraldehyde, toluene. In the absence of glucose, none of these supports growth.
Keywords: crude oil, petroleum products, biodegradation, Aspergillus niger, mass spectrometry
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MODERN METHODS FOR CO2 CAPTURE FROM FLUE AND PROCESS GASES OF DIFFERENT ORIGIN
A.I. Gazizyanov1, M.V. Shikunets2
1Federal State Budgetary Educational Institution of Higher Education «Kazan National Research Technological University», Russia, Kazan,
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2Federal State Autonomous Educational Institution of Higher Education «Perm National Research Polytechnic University», Russia, Perm,
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Abstract. The article discusses modern methods of capturing CO2 from flue and process gases. Amine purification, adsorption and membrane methods, cryogenic distillation and other technologies are being explored. Their effectiveness is analyzed in the context of reducing greenhouse gas emissions. Examples of the implementation of these methods by large companies in different countries are highlighted. The importance of integration into industrial processes to achieve global climate goals and sustainable development is emphasized. The article also examines the prospects for further development and improvement of CO2 capture techniques, as well as their role in the global strategy to combat climate change. Specific examples of successful projects are mentioned that demonstrate how CO2 capture technologies can be effectively applied in practice. This highlights the importance of innovation and international cooperation to achieve a sustainable future.
Keywords: CO2 capture, flue gases, process gases, amine purification, adsorption technologies, membrane purification, cryogenic distillation, environmental safety
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IMPACT OF GREEN ROOFS ON CARBON FLOWS AND STOCKS IN MEGALOPOLIS CONDITIONS
A.S. Shchepeleva1, S.P. Derevianko1, A.A Sayanov2, M.A. Korytina3
1Federal State Autonomous Educational Institution of Higher Education «Russian Peoples' Friendship University named after Patrice Lumumba», Russia, Moscow,
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2Association «Guild of Landscape Engineers», Russia, Moscow,
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3Federal State Budgetary Educational Institution of Higher Education «Moscow State University named after M.V. Lomonosov», Russia, Moscow,
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Abstract. The creation of green roofs is a well-known global trend towards increasing the amount of greenery in urban ecosystems. During the process of photosynthesis, carbon is fixed both in plant tissues and in the substrate. The vegetation cover included various types of sedum and native weed species. The study used an EGM-5 gas analyzer, an SRC-2 soil chamber, a soil thermometer, and a Delta-T SM moisture meter. Data collection was carried out on 6 types of roof structures on three types of substrates for 4 months from June to September in triplicate. As a result of the research, the optimal composition of the soil substrate and roof structure was identified, but significant variability in carbon stock indicators was noted depending on many factors.
Keywords: green roofs, roof landscaping, atmospheric pollution, ecology, carbon cycle, carbon dioxide, urbanization
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ASSESSMENT OF THE ENVIRONMENTAL FRIENDLINESS OF WIND POWER STATIONS
V.S. Smirnov, A.A. Agrafonova, L.R. Abdullina
Federal State Budgetary Educational Institution of Higher Education «Moscow State Technical University named after N.E. Bauman (National Research University)», Russia, Moscow
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Abstract. The article highlights the environmental efficiency of wind power plants (WPP). The life cycle of a WPP is analyzed, including production, operation and disposal. The impact of WPP on the environment is being studied. The study is based on an integrated methodology, within which a comparative analysis of WPP with traditional energy sources was carried out. The importance of an integrated approach in developing energy efficiency strategies to minimize environmental impact is emphasized.
Keywords: wind power plants, environmental efficiency, carbon footprint, thermal power plants, solar power plants, renewable energy sources
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USING WATER FLOW ENERGY TO INCREASE THE ENERGY EFFICIENCY OF IRRIGATION SYSTEMS
V.D. Gostishchev
Federal State Budgetary Institution «Russian Research Institute for Land Reclamation Problems», Russia, Novocherkassk,
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Abstract. The main share of energy costs for open-type irrigation systems is the electricity required to pump water. It is possible to install mini- and micro-hydroelectric power stations at culverts. However, there are alternative ways to use the energy of water flow to increase the energy efficiency of irrigation systems. One such method is the use of a hydraulic ram, which operates on the basis of hydraulic shock. Another method is to use an ejector pump, which operates on the principle of converting flow energy in a tapering nozzle exit section. The article also discusses the use of soft containers to ensure the operation of regulating hydraulic structures. As a water pipeline feeding these devices, it is proposed to use a self-pressure pipeline, installed on the irrigation canal at the point of water intake upstream from the point of discharge to these devices in order to create the necessary height difference and corresponding pressure. The technical and technological solutions discussed in the article can be used to regulate water distribution on canals, resolve issues of agricultural water supply and irrigation, as well as ensure energy independence from external sources of electricity.
Keywords: hydropower resources, irrigation systems, hydraulic structures, small and mini hydroelectric power stations, ejector pumps, flexible pipelines
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IMPACT OF TECHNOLOGY FOR SUPPLYING RETURNED SLUDGE INTO GRINDING QUARTZ SAND DURING THE PRODUCTION OF AERATED CONCRETE ON THE ENVIRONMENT
A.O. Shanin, A.A. Baranov
LLC PC «Kubi Block Egoryevsky», Russia, Yegoryevsk
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Abstract. The impact of greenhouse gas emissions on the environment from construction activities, in particular from the production of aerated concrete and related industries, has been studied; The results of using return sludge in grinding quartz sand in the production of cellular concrete were analyzed. A technology has been proposed for compliance with the «Net Zero Emissions» scenario. Data are presented on greenhouse gas emissions that are generated during the production of components that make up aerated concrete. The dependence of their quantity on the period of time is shown. The direct and indirect impacts of feeding return slurry into quartz sand grinding on the steel, cement, lime and natural gas markets were studied. Calculations are presented showing the impact of the technology under consideration on the amount of emissions in the Russian Federation and in the world. The authors focused on obtaining energy-efficient and environmentally friendly building materials.
Keywords: carbon dioxide, greenhouse gases, construction, return sludge, aerated concrete, «Net zero emissions»
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Biodiversity and Bioresources
TRANSFER OF PLANTS AS A WAY TO PRESERVE RARE SPECIES: LIMITATIONS AND POSSIBILITIES
Bakalov A. N.
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Abstract. The transfer of plants of rare species from disturbed areas is becoming a common practice. Some aspects of translocation are proposed for consideration, insufficient attention to which can lead to the destruction of the transferred population. The ambiguity of the method in the conditions of the Russian Federation and its contradiction with fundamental legislative documents are noted. The experience of foreign environmental organizations in the translocation of rare species is discussed. A number of recommendations are given to increase the effectiveness of plant transfers.
Keywords: Specially protected natural areas (SPNA), protected species, transplantation, translocation, repatriation of plants, reserve regime
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STATE OF CENOPOPULATIONS OF STIPA UCRAINICA P. A. SMIRN. IN STEPPE PLANT COMMUNITIES IN THE MIUS RIVER BASIN
Yu.V. Ibatulina
Federal State Budgetary Scientific Institution «Donetsk Botanical Garden», Russia, Donetsk People's Republic, Donetsk,
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Abstract. Some basic ecological and demographic population parameters of Stipa ucrainica P. A. Smirn have been studied – one of the main cenosis-formers of steppe plant communities, belonging to the rare fraction of the native flora of the Donetsk People's Republic. The obtained materials make it possible to get an informative characteristic not only of the current state of the species’ coenopopulations, but also of phytosystems as a whole. It has been established that changes in the population parameters of S. ucrainica have an indicator value and reflect the processes of transformation of steppe plant communities into other types of vegetation, marking a certain stage of reserve-togenic succession of steppe vegetation. It was revealed that at the feather grass stage the species does not require the use of additional environmental measures. Coenopopulations of the edificator in sparse steppe and petrophytic-steppe plant communities are full-fledged normal, predominantly mature self-regulating systems.
Key words: Stipa ucrainica P. A. Smirn., edificator, cenopopulation, ecological and demographic population parameters, phytocenosis
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SYNANTHROPIC PLANTS OF THE FAMILY SCROPHULARIACEAE JUSS. IN RICE SYSTEMS OF THE KRASNODAR REGION
O.V. Zelenskaya, O.A. Melnik, V.V. Korunchikova
Federal State Budgetary Educational Institution of Higher Education “Kuban State Agrarian University named after I. T. Trubilin”, Russia, Krasnodar
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Abstract. Engineered rice systems, where rice is cultivated in the Krasnodar Territory, include elements that differ in environmental conditions: rice paddies, canals, earthworks, roads. This determines the biodiversity of plants that are part of agrophytocenoses. The leading role among the environmental factors influencing the growth and development of plants in the rice field system is played by light and water regime. The article presents the results of many years of research on the taxonomic, biomorphological and ecological structure of the family Scrophulariaceae as part of the synanthropic flora of rice systems. The life forms, ecological requirements, association with elements of the rice system and economic importance of seven recorded plant species of the family are described. The dynamics of species composition and registration since 2017 in rice fields of a new alien species Lindernia dubia (L.) Pennell are shown. A study of the population size of L. dubia in agrophytocenoses showed that in some areas the number of plants is 25-30 pcs/m
2. The rapid rate of spread of the species in the rice fields of the Krasnodar region, its competitiveness in relation to rice plants and the negative impact on the harvest are discussed. The general trend of adventitization of the synanthropic flora of rice systems and the need to develop new methods of weed control have been noted.
Keywords: synanthropic flora, ecological structure of flora, phytomonitoring, Scrophulariaceae, weeds, alien plants, rice systems
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INFLUENCE OF SOAKING DURATION OF SEEDS OF THE LIANA PARTHENOCISSUS TRICUSPIDATA (SIEB. ET ZUCC.) PLANCH. IN «GORYACHIY KLYUCH» MINERAL WATER ON THEIR GERMINATION
D.E. Khlevny1,2, A.V. Petrukhina2, E.S. Popkova2
1Department for the implementation of the project «Genetics and Selection in Crop Production», Russia, Krasnodar
2Federal State Budgetary Educational Institution of Higher Education «Kuban State Agrarian University named after I.T. Trubilin», Russia, Krasnodar
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Abstract. The paper presents the results of studying the influence of «Goryachiy Klyuch» mineral water on the germination of seeds of the liana Parthenocissus tricuspidata (Sieb. et Zucc.) Planch. The research was carried out in the laboratory «Ampelographic Collection» of the Department for the implementation of the project «Genetics and Selection in Crop Production» of the Kuban State Agrarian University named after I. T. Trubilin. The effect of the duration of soaking of seeds of the ornamental the liana Parthenocissus tricuspidata (Sieb. et Zucc.) Planch was studied in «Goryachiy Klyuch» mineral water taken from the well No. 104 on their germination compared to tap water. The time of emergence of the embryonic root, formation of the hypocotyl, cotyledons and epicotyl has been determined. Soaking seeds in mineral water allows preserving a larger number of juvenile plants. In our opinion, the positive effect of soaking in this mineral water is achieved due to the content of chlorine compounds in it, which can have a disinfecting effect. To reduce the death of Parthenocissus tricuspidata plants during generative propagation, we recommend pre-soaking them in mineral water from «Goryachiy Klyuch» well No. 104 for 1–5 days.
Keywords: liana, gardening, seeds, deep seed dormancy, stratification, mineral water, Parthenocissus tricuspidata
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ECOLOGICAL-FAUNISTIC CHARACTERISTICS OF HELMINTH COMMUNITIES OF THE COMMON BADGER (MELES MELES L.) IN THE CONDITIONS OF THE NORTHWEST CAUCASUS
G.S. Itin1, S.F.T. Al-Dulaimi2, G.K. Plotnikov2
1Federal State Budgetary Educational Institution of Higher Education «Kuban State Agrarian University named after. I. T. Trubilina», Russia, Krasnodar
2Federal State Budgetary Educational Institution of Higher Education «Kuban State University», Russia, Krasnodar
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Abstract. Wild carnivores, which include the badger, play an important epidemiological and epizootological role, forming and maintaining natural foci of dangerous pathologies. The species structure and mechanisms of formation of badger helminth communities in the Northwestern Caucasus were studied. During the period from 2020 to 2023, 58 badger corpses were examined, taken in various landscape and geographical zones of the region. 21 species of helminths were found in the examined badgers (swamp zone – 14, lowland zone – 15, foothill zone – 15, mountain zone – 13 species). High rates of infection with helminths were revealed: Mesocestoides lineatus, Taenia crassiceps, Uncinaria stenocephala. In the badger helminthocenosis in the region, 54 infracommunities of helminths were registered. Wild predators and their parasites are important components of biocenoses, having a significant impact on the regulatory mechanisms in these systems. The ecological mechanism of formation of badger helminth communities in the region is determined by the species structure of trophic-epizootic chains.
Keywords: badger, Northwestern Caucasus, helminth communities, trematodes, cestodes, nematodes, trophic-epizootic chains
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ON THE INFLUENCE OF ENVIRONMENTAL FACTORS ON THE NUMBER OF MOUNTAIN HARE IN THE RYAZAN REGION
O.A. Grekov, A.A. Manaenkov
Federal State Educational Institution of Higher Education «Vernadsky Russian State University of National Economy» Russia, Balashikha,
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Abstract. The article presents the results of the analysis of the influence of natural factors on the population of the game species, the white hare. The habitat of the species corresponds to the IV class of bonitet. The main negative factors reducing the potential for reproduction are identified: shifting climatic seasons, forest fires. However, the average population density is 3 times lower than the standard. In general, natural conditions are favorable. The dynamics of the population of the white hare is labile with fluctuation periods of 3–6 years.
Keywords: white hare, environmental factors, anthropogenic impact, habitat, population dynamics
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Monitoring of Ecological Systems
INFLUENCE OF FOREST SHELTER BELTS ON MICROCLIMATE INDICATORS OF AGROECOSYSTEM
O.A. Melnik
Federal State Budgetary Educational Institution of Higher Education «Kuban State Agrarian University named after I. T. Trubilin», Russia, Krasnodar
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Abstract. The article presents the results of assessing the influence of shelter belts on the microclimate of the agroecosystem using the example of the 1st department of the educational farm «Kuban» in Krasnodar. It is noted that forest belts contribute to climate mitigation and the formation of an agroecosystem microclimate in the area of their operation. They serve as a natural barrier to the wind, reducing its speed, and this, in turn, determines the air temperature. As a result of the research, a decrease in wind speed near the forest belt was determined by more than 2.5 times compared to areas at a distance of 150–200 m from the forest belts. Air temperature also decreases in summer. In the forest belt in July 2023 it was 27.9 °C, and at a distance of 150–200 m it exceeded 30 °C.
Keywords: agricultural farm «Kuban», agroecosystem, shelter belts, microclimate, wind speed, air temperature
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Applied Ecology
LYIED AND QUALITY INDICATORS OF WHEAT GRAIN OF ALTERNATIVE CULTIVATION METHOD IN THE CONDITIONS OF STEPPE CRIMEA
T.L. Averchenko1, N.N. Neshchadim2, A.V. Koval2
1Federal State Budgetary Institution of Science Research Institute of Agriculture of Crimea, Russia, Republic of Crimea,
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2Federal State Budgetary Educational Institution of Higher Education Kuban State Agrarian University named after I.T. Trubilin, Russia, Krasnodar,
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Abstract. Wheat is a key agricultural crop in world production and in Russia as well. Wheat grain is strategic, as it is used in the baking industry, as well as for feeding farm animals. The main direction of modern agricultural technology is the selection of varieties and the development of agricultural technology taking into account the adaptive conditions of a changing climate. Wheat in the Crimean region is cultivated on an area of more than 400 thousand hectares and this figure only increases every year, as well. Due to the unevenness and insufficient amount of precipitation in the autumn period, sparseness of winter wheat crops is noted and, taking this factor into account, it is necessary to introduce facultative wheat varieties into production and develop appropriate cultivation technologies. The purpose of the experiment is to change the grain productivity of facultative wheat varieties depending on the sowing time. It was established that the yield level of alternative lifestyle wheat varieties depended on the sowing time, as well as varietal characteristics and weather conditions. In a year with sufficient precipitation, the maximum yield was obtained when sowing in early October (the yield was 6.04–7.01 t/ha). The yield of the control variety under these conditions was at the level of other varieties. In a year with insufficient precipitation, the best sowing time for facultative wheat varieties is mid-November. And at the same time, a significant decrease in the productivity of the Bezostaya 100 variety (control) was noted for the sowing time. Varietal characteristics had a significant effect on the yield (their effect by year is 54–61 %). A mathematically reliable increase in the amount of protein in the grain was obtained when sowing at the end of September. The effect of autumn sowing dates on the amount of protein was 46–50 %. The share of the influence of varietal characteristics on this indicator was 40–46 %.
Keywords: facultative wheat, variety, sowing dates, yield, crop structure, protein, gluten
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Brief Communications
APPLICATION OF N, N-DIALLYL MONOETHANOLAMINE AS A GRASS MEAL STABILIZER
G.O. Torosyan, T.V. Vandunts, L.R. Vardanyan
Goris State University, Republic of Armenia, Goris
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Abstract. The report presents results on the use of N,N-diallyl monoethanolamine (DAE) as a grass meal stabi-lizer to preserve biologically active substances, such as vitamins, in feed. DAE has antioxidant properties that are as effective as other known antioxidants. During the synthesis of DAE, the feasibility of introducing two allylic groups with nitrogen in aminoethanol was established, since the same group with oxygen in the starting aminoethanol sharply reduces the stabilizing activity towards carotene and chlorophyll. The stabilizing proper-ties of N,N-diallyl monoethanolamine are explained by the free hydroxyl group along with two unsaturated al-lylic groups of nitrogen.
Keywords: monoethanolamine, N,N-diallyl monoethanolamine, antioxidant properties, carotene, chlorophyll
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