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Chemical Journal of Kazakhstan
ISSN
1813-1107
2710-1185
9 результаты
Показано: 1 - 9 из 9
- Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, DETERMINATION OF HIGHER FATTY ACIDS IN THE COMPOSITION OF URTІCA DIОICA LEAVES(2023-12-15); ; ; Urtіca diоica is a tall perennial plant with an unbranched stem and large simple serrated leaves. Urtіca is widespread in many parts of the globe. Including in North Africa, in some regions of Asia, Europe and North America. Urtіca contains many biologically active substances, such as flavonoids, carotenoids, phenolic compounds, vitamins and minerals, which have a beneficial effect on the human body. Due to its antioxidant, anti-inflammatory and antibacterial properties, it is used in medicine and cosmetology. Currently, urtica dioica is widely used by traditional medicines. The purpose of the study. Determination of the upper fatty acids contained in the leaves of dioecious nettle. The research method. A gas-liquid chromatograph "Crystallux-4000 M" with a mass spectrum detector of the PIT and MS 7-800 brands was used. The object of the study was a dioecious nettle, collected in 2021 from Mount Medeu, Almaty. The study showed that the leaves of the dioecious nettle contain 8 fatty acids. The most common in the leaves of urtica dioica are methyl butyrate, methyl hexanoate. The conclusion of the study. High fatty acids in the composition of dicotyledonous nettle leaves were detected in a gas-liquid chromatograph "Kristallux-4000 M" with a mass spectrum detector of the PID brand and "MS7-800". As a result, 8 fatty acids with a high content were found in the dioecious nettle leaf. Of these, methylbutyrate and methylhexanoate are found in the largest amounts. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, RESEARCH OF PRODUCTION TECHNOLOGIES, MICROBIOLOGICAL AND AGROCHEMICAL CHARACTERISTICS OF FERTILIZERS BASED ON MONO-, DYCALCIUM PHOSPHATE WITH ZINC PHYTO-COMPOUND: Communication 2. Study of microbiological and agrochemical characteristics of a composition based on mono-, dicalcium phosphate with a phytocompound of zinc(2021-03-14); ; R. U. MakhmudovOn model soil samples, the positive effect of the composition based on mono-, dicalcium phosphates with a phytocompound of zinc on the number of soil microorganisms affecting the nitrogen and phosphorus nutrition of plants and the accumulation of easily hydrolyzable nitrogen and mobile forms of phosphorus pentoxide in the soil was established. Achieved: an increase in the number of nitrogen-fixing microorganisms in comparison with the standards in 3.14-3.2 times and phosphate-mobilizing 3.4-3.42 times; accumulation of soil 11.5-12.7% of easily hydrolyzable nitrogen and 6.9-8.1% of mobile forms of phosphorus pentoxide. In the reference variants, there is a decrease in the content of phosphorus pentoxide mobile forms by 6.9-8.3%, which is associated with the retrogradation of phosphorus pentoxide. A decrease in the number of oligotrophs and denitrifiers, decomposing humus, and nitrate nitrogen of the soil by 2.18-2.15 times and 2.5- 2.56 times is the basis for the preservation of soil fertility. Under the conditions of a microplot experiment, it was determined that the compositions containing a Phyto compound of zinc provide an increase in the yield of raw cotton in comparison with the standards – mono-, dicalcium phosphates 3.9 and 4.3 c/ha. The data obtained are in good agreement with phenological observations, the content of nutrients in the middle of the growing season, and the results of microbiological studies. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, Study of the chemical composition of raw alcohol obtained from the tuber of dahlia(2022-06-15); ; ; ; The raw material for alcohol production is a variety of plant materials, which contain sufficient amounts of digestible sugars or other carbohydrates that can be saccharified. Dahlias are tuberous plants of the Asteraceae family with a quick and powerful growth and a long vegetation period. The study of the chemical composition of dahlia tubers is of undoubted interest in terms of practical health care. Dahlia tubers are the main raw material for obtaining inulin, which has a wide range of pharmacological action. The vegetative (aboveground) part of dahlia has been an object of research. The purpose of this study has been to study the chemical composition of raw alcohol, obtained from the dahlia tubers. For this purpose, the chemical composition of the tuber of dahlia plants belonging to the Compositae family has been studied. It has been found that the tubers of dahlia contain a large amount of biologically active substances: protein, coumarin, polyphenol, pectin and inulin. Dry alcoholic yeast (TC BY 100104781.010-2005 dried alcoholic yeast Saccharomyces cerevisiae produced in Belarus) has been used as yeast. The fermentation process has taken place at the room temperature for 2-3 weeks. After 2 weeks it has been filtered, the quantity of wort has been measured and distilled. The chemical composition of the raw alcohol, obtained from dahlia tubers has been identified on an Agilent 7890A/5975C chromato-mass spectrometer. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, SYNTHESIS OF A DOUBLE COMPOUND BASED ON DIMETHYLOL UREA AND PHYTOCOMPOUND OF MOLYBDENUM AND THE STUDY OF ITS INFLUENCE ON THE POPULATION OF SOME SOIL MICROORGANISMS AND ACCUMULATION OF NITROGEN(2023-09-15); Olga MyachinaDrillers used for agricultural crops, in particular cotton seeds, cannot provide additional nitrogen feeding in the required volume during a shortage of nitrogen fertilizers. This article sets the task of creating a new active substance based on the phyto compound dimethylolure and molybdenum, which allows you to reduce cotton diseases in cotton cultivation, increase the accumulation of light hydrolyzed nitrogen in the soil and obtain a high cotton yield. The purpose. Study of chemical interactions in a three-component aqueous-salt system of dimethylolure-molybdenum phyto-compound-water by isothermal method. Objects. DMM, FSMo, double compound DMM is the active reactant of FSMo. Results.The isothermal method at a temperature of 25°C found that in the concentration range of solutions of 12.2-9.8% DMM and 2.8-5.4% FSMo, DMM crystallizes in the system, at a concentration range of 5.7-2.1% DMM and 12.3-15.5% FSMo, FSMo crystallizes, and in the concentration range of 8.2 -6.4% DMM and 6.2-9.3% FSMo, the compound DMM•FSMo is separated from the solution into this phase.Conclusion. The chemical interaction in the water-salt system dimethylol urea (DMM) - molybdenum phytocompound (FSMo) - water was studied by isothermal methods of chemical analysis. The region of crystallization of a new double compound, an active substance based on DMM and FSMo, was established at a molar ratio of 4DMM•FSMo. On model soil samples, it was determined that the active substance - the double compound 4DMM•FSMo against the background of ammonium nitrate, in comparison with ammonium nitrate, increases the number of nitrogen-fixing bacteria by 3.0 and 3.2 times. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, PREPARATION OF PHOSPHORIC FERTILIZER BASED ON PHYTOCOMPOSITION OF ZINC AND MONOCALCIUM PHOSPHATE(2021-03-14); ; Sh. BaybashchaevaIn this article the results of synthesis of monocalcium phosphate with a zinc phytocompound are considered. By studying the chemical interaction of monocalcium phosphate with a zinc phytocompound, studying their physicochemical and commercial properties, the optimal compositions of phosphorus fertilizers based on monocalcium phosphate with a zinc phytocompound have been determined. Considering the importance of phosphorus for the formation of plant tissue in increasing the productivity of agricultural crops, the main attention is paid to the assi-milation of phosphorus compounds by plants, which is of paramount importance. It is well known, that one of the main disadvantages of phosphorus fertilizers used in crop production is the low utilization rate of nutritive phosphorus pentoxide, which does not exceed 20-22%. The fact of the low utilization rate of nutritious phosphorus pentoxide in fertilizers is associated with its retrogradation in the soil with the formation of compounds not assimilated by plants. Agrochemical studies have established that phytocompounds increase the utilization rate of phosphorus-containing fertilizers. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, SELECTIVITY OF INTERPOLYMER SYSTEMS WITH RESPECT TO LANTHANUM IONS(2021-03-14); ; ; The paper deals with the sorption of lanthanum ions by an interpolymer system consisting of sulfonic cation exchanger KU2-8 and anion exchanger AV-17-8. To predict the sorption activity of the intergel system, the mutual activation of the KU2-8 sulfonic cationite with the AV-17-8 anionite in the aqueous medium was initially studied. Due to the mutual activation of hydrogels in the course of their remote interaction, the polymer macromolecules pass into a highly ionized state, which leads to a significant increase in the degree of extraction of lanthanum ions from polymer hydrogels in intergel vapors as compared to the initial polymers. We calculated the degree of extraction of lanthanum ions by the interpolymer system KU2-8: AV-17-8, the degree of binding of the polymer chain (in relation to lanthanum ions) with the initial ion exchangers and the interpolymer system KU2-8: AV-17-8. Based on the data obtained, a comparative analysis of the sorption of lanthanum ions by individual sorbents and an interpolymer system was carried out within the limits of the ratio KU2-8: AV-17-8 = 5: 1–1: 5. It has been established that the maximum degree of sorption of lanthanum ions by the KU2-8: AV-17-8 interpolymer system is observed within the ratio KU2-8: AV-17-8 = 2: 4 at 48 hours of remote interaction of the interpolymer system and is 54.73 mol. %, at which the degree of binding of the polymer chain is 6.15% - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, Synthesis and physico –chemical characteristics of complex ferriteCrNaFe2O5(2024-03-15); ; ; Цитирования (OpenAlex) 3Цитирования (OpenCitations) 2 - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, REGIOSELECTIVE HYDROALKOXYCARBONYLATION OF 1.3-BUTADIENE, 1.5-HEXADIENE, AND 1.7-OCTADIENE USING PALLADIUM-PHOSPHINE CATALYTIC SYSTEMS(2025-12-04); - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, DEVELOPMENT OF COMPOSITE ALUMINUM POWDERS WITH ENHANCED THERMOREACTIVITY FOR ENERGETIC SYSTEMS(2025-09-30)