Experimental biology

ISSN

1563-0218

2617-7498

Издатель

Al-Farabi Kazakh National University

Ключевые слова

Botany and Plant Ecol...

Mediterranean and Ibe...

Fish Biology and Ecol...

Plant Ecology and Tax...

Fish Ecology and Mana...

Публикации в журнале

Показано: 1 - 7 из 7

Некоторые метрики заблокированы вашими
настройками согласия
БИОХИМИЧЕСКАЯ И МИКРОБИОЛОГИЧЕСКАЯ ОЦЕНКА ARTEMIA PARTHENOGENETICA, ОБОГАЩЁННОЙ ARTHROSPIRA PLATENSIS ZTS-2024
(Al-Farabi Kazakh National University, 2026-09-20)
Damys Salauat
;
Dariga Batayeva
;
Gaukhar Jumakhanova
;
Sofiakhan Alimova
;
Zh. S. Omarova
Live feeds of the genus Artemia are widely used in aquaculture, but their nutritional value and microbiological quality depend on culture conditions and can be improved through biological enrichment. This study evaluated the effect of enriching Artemia parthenogenetica with the Arthrospira platensis ZTS-2024 strain on biochemical characteristics and microbiological quality. The strain, isolated from the southeastern saline area of Lake Balkhash (Jetisu Region, Kazakhstan), was used for 18- and 24-h enrichment. Amino acid and fatty acid compositions, total culturable bacterial counts, Vibrio spp. abundance, and hemolytic bacterial counts were determined. The experiment included three biological replicates, and the data were analyzed by two-way ANOVA followed by Tukey’s test. Enrichment increased several amino acids and polyunsaturated fatty acids, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), with the greatest changes after 24 h. At 24 h, total culturable bacteria in the enriched group were 670 ± 430 CFU·individual⁻¹, an 87.1% reduction relative to the corresponding control; hemolytic bacteria decreased by 93.6%, and Vibrio spp. by 90.8%. The study extends evidence on the combined nutritional and microbiological benefits of using a local Arthrospira platensis strain for Artemia enrichment. The practical value of the results lies in the potential use of Arthrospira platensis ZTS-2024 in live-feed preparation for aquaculture.
Некоторые метрики заблокированы вашими
настройками согласия
STUDY OF THE HEAVY METALS EFFECT ON THE PIGMENT SYSTEM OF CORN VARIETIES
(Al-Farabi Kazakh National University, 2021-07-21)
A. M. Digarbaeva
;
A. N. Kaliyeva
;
N. Aidyn
The degree of adaptation of plants to changes in environmental factors, new environmental conditions depends on the composition of chlorophylls and carotenoids, which are the main photoreceptors of photosynthetic cells. However, the degree of exposure of plants to the pigment complex depends on the type of plant, growth conditions, the composition and concentration of toxicants and the duration of their action. The article describes the effect of heavy metal ions on the photosynthetic pigments of 14-day-old corn varieties (Turan-170, Turan-480, Kazakhstan-435, Tauelsizdik-20), resistant and non-resistant varieties. During the experiment, we concluded that the varieties Turan-170, Turan-480, Tauelsizdik-20 are resistant, and Kazakhstan-435 are intolerant in terms of the content of carotenoids, chlorophyll-a, chlorophyll-b pigments in corn varieties (Figures 2,3,4,5). This is because Kazakhstan-435 may have varietal characteristics. In general, heavy metals have a negative effect on plants, reduce the content of chlorophyll and carotenoids, cause shifts in the structure of the membranes of chloroplasts, which negatively affects the intensity of photosynthesis.
Некоторые метрики заблокированы вашими
настройками согласия
MOLECULAR GENETIC IDENTIFICATION OF BACTERIA ISOLATED FROM GOAT MILK
(Al-Farabi Kazakh National University, 2023-03-20)
Sanam Nadirova
;
Yu.A. Sinyavskiy
;
R.S. Utegalieva
;
E.Zh. Gabdullina
;
S.N. Abdreshov
In recent years there has been a steady trend towards an increase in the number of studies on the study of probiotics, which have a beneficial effect on the body: improve the intestinal microflora; contribute to the reduction of pathogenic bacteria; have the ability to produce substances with antimicrobial activity. In order to obtain probiotics from domestic raw materials, molecular genetic identification of bacterial strains was carried out. The object for the isolation of lactic acid bacteria was natural goat milk from the Almaty region, IE "Bekezhanova". Identification of bacterial strains was carried out on an ABI 3500 xL genetic analyzer (Applied Biosystems) using 16S primers 8F and 806R at the Scientific and Practical Center for Microbiology and Virology (Almaty). Phylogenetic analysis was performed using MEGA 6 software. Nucleotide sequence alignment was performed using the ClustalW algorithm. The results were obtained using the method of determining the direct nucleotide sequence of the 16S rRNA gene fragment, followed by comparison of the nucleotide identity with the sequences deposited in the international GenBank database. According to the results of the studies, the isolated strains of lactic acid bacteria according to the GenBank database were assigned to Lactobacillus fermentum (identity above 99.73%). These strains of microorganisms isolated from goat's milk may be promising for the production of domestic food products. On their basis it is proposed to create fermented milk products for preventive purposes.
Некоторые метрики заблокированы вашими
настройками согласия
ЭКОЛОГО-ФИТОЦЕНОТИЧЕСКАЯ ОЦЕНКА ПОПУЛЯЦИЙ ЭНДЕМИЧНОГО ВИДА TULIPA BRACHYSTEMON REGEL НА СЕВЕРНОМ МАКРОСКЛОНЕ ЖЕТЫСУСКОГО АЛАТАУ
(Al-Farabi Kazakh National University, 2026-09-20)
B. Sh. Kaliyev
;
Liliya A. Dimeyeva
;
Kapar Ussen
;
Ажар Иманалинова
;
Ж.Е. Сагидолдина
Tulipa brachystemon Regel is a narrowly distributed endemic whose occurrence within the Zhetysu Alatau mountains remains insufficiently studied, while information on its phytocoenotic affinity and habitat structure is still fragmentary. Therefore, the study of plant communities with the participation of T. brachystemon and the assessment of its role within the vegetation cover of the northern macroslope of the Zhetysu Alatau mountains are of considerable relevance. The aim of this study was to summarize available data on plant communities with the participation of Tulipa brachystemon on the northern macroslope of the Zhetysu Alatau mountains, to identify the floristic features of these communities and to assess the phytocoenotic affinity of the species. The scientific significance of the study lies in the synthesis of all available information on the composition and diversity of plant communities containing Tulipa brachystemon. The study was based on field investigations conducted between 2015 and 2022, herbarium collections, ...
Некоторые метрики заблокированы вашими
настройками согласия
TRITICUM L. ЖӘНЕ SECALE L. ТУЫСТАРЫНЫҢ МӘДЕНИ ТҮРЛЕРІНЕ БИОХИМИЯЛЫҚ ТАЛДАУ ЖАСАУ
(Al-Farabi Kazakh National University, 2022-06-29)
А.А. Kulbekova
;
Ж. Ж. Кужантаева
;
А.А. Ydyrys
;
Zh. M. Eralieva
;
D.S. Bataeva
In the article Triticum L. and Secale L. to clarify the bioecological features of the species, the chemical composition of a number of varieties containing macronutrients, proteins, fats, carbohydrates, fiber and vitamins was determined. The study included varieties of winter soft wheat "Mereke 70" and " Dimash "and winter durum wheat" Kazakhstansky yantar ", winter rye Tretikale" Taza", cultivated in the regions of Almaty and Zhambyl regions.
Некоторые метрики заблокированы вашими
настройками согласия
INTRODUCTION AND COMPARATIVE CHARACTERISTIC OF MALUS SIEVERSII VARIETY CLONES OF THE DZHUNGARIAN POPULATION
(Al-Farabi Kazakh National University, 2021-06-30)
LAURA SH. SHADMANOVA
;
G.S. Mukanova
;
S. N. Murzahmetov
;
A. B. Alpysbayeva
;
A. Sankaibaeva
Malus sieversii is a mountain-steppe and valley tree species widespread in the mountains of southeast Kazakhstan. The aim of this work is to study the structure of variability and intraspecific differentiation of Malus sieversii (Ledeb.) M. Roem. based on a complex of morphological features of generative organs and the characteristics of the seasonal rhythm of apple trees in natural and introduction conditions. Malus sieversii is a mountain-steppe and valley tree species widespread in the mountains of southeast Kazakhstan. The introduction collection of Malus sieversii’s forms growing in the Main Botanical Garden of Almaty (GBS) is a source of global genetic resources. According to the research data, the intraspecific variability of the studied apple tree forms was characterized by heterogeneous morphometric parameters of the generative organs. The studied apple trees are distinguished by heterogeneous morphometric parameters. Large-flowered forms were observed both in natural populations and in GBS. In the conditions of the Dzungarian Alatau, the large sizes of flowers were characteristic of the forms in the gorges of Pikhtovaya and Mushabay. Among the variety clones the sample TP-19 selected in the Pikhtovaya distinguished itself by the large size of the corollas.
Некоторые метрики заблокированы вашими
настройками согласия
Жиделер тұқымдасы (Elaeagnаceae) жемісіндегі натрий мен калий мөлшерін атомды-абсорбциялық спектрометрия әдісімен анықтау
(Al-Farabi Kazakh National University, 2019-09-14)
Mereke Kassimbekova
;
A. N. Kaliyeva
On this article describes method determination of sodium and potassium in fruit of medicinal plants family Elaeagnаceae by atomic absorption spectrometry. According to their content in living organisms, potassium and sodium are indispensable macronutrient, they are actively involved in metabolism, therefore these elements were identified from the species medicinal plants of the family Elaeagnаceae. As the objects of the study we collected three populations of the family Elaeagnaceae, they are Hippophae rhamnoides and Elaeagnus oxycarpa, they were collected in the Almaty region, Karasai district and Khengen district. During the experiment was performed the calibration schedule by comparing the elements of study in the fruit of family Elaeagnаceae with a standard solution. Usually prepared three comparative solutions and experimental solution, but during the reaserch work were prepared six solutions. Standard solutions of potassium and sodium (100 μg / ml) were prepared by mixing with ionized water accordıng to GSO 7474-98. In accordance with the results, a high concentration was determined from the fruits of the species Elaeagnaceae family. The World Health Organization pays great attention to drugs derived from medicinal plants. Therefore, nowadays it is important to study the healing properties of medicinal plants. From the fruits of the species belonging to the family Elaeagnаceae, as a valuable medicinal raw material for traditional and national medicine was demonstrated methods of use for various purposes and rules for collection. Key words: Elaeаgnаceae, Hippophaе rhamnoides, Elaeagnus oxycarpa, medicinal plants.

Experimental biology

Фильтры

Настройки

Сортировать по

результатов на странице