Қазақ ұлттық қыздар педагогикалық университеті / Казахский национальный женский педагогический университет

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Adaptation Features of Gentiana tianschanica Rupr. Populations to Environmental Factors in Kazakhstan
(2024-01-01)
Бекзат Тыныбеков
;
Moldir Imanaliyeva
;
Askhat Kuatbayev
;
Gulmira Satybaldiyeva
;
Elmira Boribay
The study investigates the current state, floristic composition, and ecological characteristics of Gentiana tianschanica populations in the Ile-Alatau region, part of the Ile-Alatau National Park, Kazakhstan.Gentiana L., an ancient boreal genus, includes 31 species in Kazakhstan, such as the endemic Gentiana dschungarica.Known for medicinal uses, especially for gastrointestinal and urogenital disorders, interest in gentians has risen for ornamental and pharmacological applications.Nine natural populations of G. tianschanica were studied in diverse ecological and phytocoenotic conditions of the Ile-Alatau mountains.Soil analyses revealed significant differences in the physicochemical properties of the species' habitats.In the Kimasar Gorge, mountain-meadow chestnut soils with a light loamy texture were observed, while the Big Almaty Gorge featured dark chestnut soils rich in humus (7.36-18.78%)and nutrients such as nitrogen (120.4-140.0mg/kg), phosphorus (58-98 mg/kg), and potassium (470-1000 mg/kg).These findings emphasize the species 'adaptation to varying altitudinal and climatic zones.Phytochemical analysis showed G. tianschanica is rich in bioactive compounds, including phenolics, bitter glycosides, flavonoids, and alkaloids.Total phenol content reached 1567.17-9008.20mg of gallic acid/100 g, with the highest levels in leaves.Flavonoids (up to 1358.25 mg catechin/100 g) and vitamin C (up to 244.7 mg/100 g) were significant.Syringic acid (1685.8mg/100 g), quercetin (317.4 mg/100 g), and chlorogenic acid (237.5 mg/100 g) highlighted antioxidant and antiinflammatory potential.The antioxidant activity, particularly in leaves, reached 530.30 mg Trolox/100 g.Anthropogenic threats, including overgrazing and habitat disturbance, have led to declining populations, necessitating conservation strategies like habitat monitoring, protective regimes, and sustainable medicinal plant use.This study underscores the ecological and phytochemical significance of G. tianschanica, which is vital for biodiversity conservation and pharmaceutical development.
Цитирования (OpenAlex) 2Цитирования (OpenCitations) 3
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CURRENT SOIL STATE OF POPULATIONS OF SEDUM HYBRIDUM L. AND SEDUM EWERSII LEDEB. FOUND IN THE ZAILIY ALATAU
(Al-Farabi Kazakh National University, 2024-01-01)
Tatyana Kobylina
;
Бекзат Тыныбеков
;
Akmaral Nurmahanova
;
Gulmira Satybaldiyeva
;
Gulbanu Aueskhanovna Sadyrova
The article describes the natural soil conditions of Sedum hybridum L. and Sedum ewersii Ledeb—populations area based on the results of field and laboratory soil studies of soils. Soil types, morphological features, chemical composition, nutrient elements, amount of humus, absorbed bases and salt composition, and mechanical composition of soils are determined. The following soil types were identified during field studies: Kokzhailau Gorge (population 1) – chernozem, Turgeni Gorge (population 2) – chernozem, near Kastek River (population 3) – chestnut soil. The humus content in the 0-80 cm layer of chernozem (population 1) of Kokzhailiau gorge is very high, ranging from 5.55-12.81%, the reaction of the soil medium is within pH 7.10-7.40, i.e. CO2 content ranges from 0.16 to 0.34. On chernozems of Turgeni gorge (population 2) humus content in 0-60 cm layer is very high, within 5.90-20.88%, reaction of soil medium within pH 6.15-7.07, amount of CO2 within 0.21-0.34. On chestnut soils near the Kastek River (population 3), the humus content in the 0-73 cm layer was in the range of 1.57-6.92%, the pH ranged from 7.13-8.23, i.e. it was alkaline, the CO2 content was in the range of 0.16 - 0.34. The composition of salts in the chernozems of the Kokzhailau gorge: CO3 - not detected; HCO3- - 0,24- 0,48 ; Cl- – 0.04; CO4- – 0,12-0,92; Sa+ – 0,29-0,49; Mg 2+ – 0,20-0,98; Na+ – 0,05-0,06; To+ – 0,05-0,23; The amount of salts is 0.060-0.083%. It was found that the soils of all 3 populations are not saline, since the amount of salts does not exceed the salinity limit.
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Study of Morphogenesis and Anatomical Structure of Arctium tomentosum Mill. Native to Kazakhstan
(Polish Society of Ecological Engineering, 2024-07-01)
Akmaral Nurmahanova
;
Aigul Аkhmetova
;
Saule Atabayeva
;
Gulbanu Aueskhanovna Sadyrova
;
Assel Childibayeva
The article presents the biological features of Arctium tomentosum Mill. in natural and sowing conditions, the changes in morpho-anatomical structure of vegetative organs in ontogenesis.The growth rate of the germinal root was quite active, and the formation of many lateral roots was observed at the juvenile stage of life.There was an increase of the neck of the germinal root in the immature state, the formation of primary and secondary lateral roots in length, and an increase in the level of growth of the germinal root in the virginal age state.In the generative state, in the second year of life, the lateral roots form two distinct layers.The seed shell in the natural environment is lamellar, without protein, the seed is well ripened.In the next juvenile state, it was observed that the components of the xylem and phloem were not fully formed in the leaf-like cotyledon, with an underdeveloped mesophyll, of a homogeneous type.The first anatomical features in the root structure have been clarified.The size and shape of mesophyll cells are stable, columnar and loose parenchyma are determined, conductive tissues are formed.The anatomical structure of the root undergoes a period of over-development.In the generative state, the size of the central cylinder increased in the structure of the root, the layer of cutin thickened on the leaves, and the layer of columnar mesophyll containing chlorophyll grains increased.There was an accumulation of idiotic cells and needle-like calcium oxalate druzes in the root.
Цитирования (OpenAlex) 5Цитирования (OpenCitations) 4
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Soil morphological and chemical characteristics in the habitats of the rare, endemic plant Spiraeanthus schrenkianus in Karatau Mountains, Kazakhstan
(Instituto Internacional de Ecologia (Brazil), 2025-01-01)
A Muratbayeva
;
Akmaral Nurmahanova
;
Канат Кулымбет
;
A. T. Myltykbayeva
;
Aigul Аkhmetova
BACKGROUND: The article presents the results of the study of ecological characteristics of soils of three populations on the territory of Karatau. The populations were located in different geographical points with differences in soil types, depth of horizons and content of chemical elements. The study evaluated the main soil parameters including humus content, pH, CO2, macro- and microelements, and salinity level. It was found that population-1 (mountain gray-brown soils) was characterized by the highest content of humus and mobile nitrogen, indicating better availability of nutrients to plants. population-2 (mountain southern serozems) has higher potassium content, which is favourable for plant growth. population-3 (mountain gray-brown soils) showed the lowest content of mobile phosphorus and copper compared to other populations. Analysis of heavy metal concentrations showed that zinc exceeded the maximum permissible concentration only in population-2. At the same time, soil salinization at all three sites remains at a low level and does not pose a threat to the ecosystem. These findings are ecologically significant as they reveal the critical role of soil fertility and contamination in supporting the distribution and survival of the rare endemic species Spiraeanthus schrenkianus. These results provide new information for assessing the fertility and sustainability of land resources.
Цитирования (OpenAlex) 4Цитирования (OpenCitations) 1
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Public health risks associated with antibiotic residues in poultry food products
(Elsevier BV, 2025-03-16)
Sylvester Chibueze Izah
;
Akmaral Nurmahanova
;
Matthew Chidozie Ogwu
;
Zhexenbek Toktarbay
;
Zoya Umirbayeva
Antibiotic residues in the poultry food products pose significant public health risks, contributing to the growing global challenge of antimicrobial resistance (AMR). This paper focuses on the public health risks associated with antibiotic residues in poultry food products. The study found that the routine use of antibiotics in poultry farming for growth promotion and disease prevention has resulted in the accumulation of residues in food products, which can lead to adverse health effects in consumers. These include allergic reactions, toxicity, disruption of gut microbiota, and the promotion of antibiotic-resistant bacteria. Long-term exposure to antibiotic residues, even at low levels, exacerbates these risks, impacting not only individual health but also broader public health systems. Regulatory frameworks, such as the establishment of maximum residue limits (MRLs) and stringent monitoring, are crucial for ensuring food safety. However, there is a pressing need for alternative strategies in poultry production that reduce reliance on antibiotics while maintaining animal health. Public education, antimicrobial stewardship, and sustainable farming practices are vital to mitigate the risks posed by antibiotic residues. The global effort to address AMR should involve coordinated actions among stakeholders, including policymakers, farmers, and healthcare providers, to protect both food safety and public health. Future research needs to prioritize the development of alternative therapeutics and innovative farming practices to minimize the presence of antibiotic residues in poultry products. • Use of antibiotics in poultry could boost growth and wellbeing but also pose public health risks. • Ongoing misuse is driving an increase in environmental and organismal antibiotic residues. • Antibiotic residues can accumulate through the food chain with known and unknown One Health effects. • Factors affecting residues include antibiotic type, dosage, withdrawal and cultural practices. • Cooking reduces antibiotic residues, but consumption of poultry products may cause allergic and microbiota effects.
Цитирования (OpenAlex) 38Цитирования (OpenCitations) 14
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Eucalyptus wood waste biochar: a green solution for fluoranthene contamination in wastewater
(Taylor & Francis, 2025-04-03)
Yu Shuang Ren
;
Bekzat Tynybekov
;
Akmaral Nurmahanova
;
Talgat Ibragimov
;
Ussen Kurmanbay
This study investigates the removal of fluoranthene (Flu) from vehicle-wash wastewater (VWW) using biochar (EWB) derived from eucalyptus wood waste. Analytical techniques such as surface area analysis (SAA), scanning electron microscopy (SEM), and fourier transform infrared spectroscopy (FT-IR) were employed to characterize the EWB. Optimal conditions for Flu adsorption (98.80%) were determined as 40 ppm initial concentration, 60 minutes contact time, pH 5, 60°C, and 0.4 g adsorbent dosage. The adsorption process was evaluated using kinetic models and isotherms, showing that Flu adsorption onto EWB follows a pseudo-second order kinetic model. The Langmuir isotherm provided the best fit for the experimental data. Thermodynamic analysis revealed that the adsorption process is exothermic and spontaneous, as indicated by the values of entropy (ΔS°), Gibbs free energy (ΔG°), and enthalpy (ΔH°). A comparative analysis with commercial adsorbents demonstrated the high efficacy of EWB in removing Flu from industrial wastewater, achieving over 98% efficiency.
Цитирования (OpenAlex) 3Цитирования (OpenCitations) 2

Қазақ ұлттық қыздар педагогикалық университеті / Казахский национальный женский педагогический университет

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