Ramza Berzhanova

Dr. Ramza Berzhanova

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
11 August 2023 in Environmental Science and Pollution Research
Verified
Journal Article
Closed access
PDF file
ANAsil Nurzhanova
Asil Nurzhanova
Valentina V. PidlisnyukValentina V. Pidlisnyuk
Valentina V. Pidlisnyuk
RBRamza Berzhanova
Ramza Berzhanova
ANAsiya Nurmagambetova
Asiya Nurmagambetova
Nina TerletskayaNina Terletskaya
Nina Terletskaya
AMAigerim Mamirova
Aigerim Mamirova

15 September 2020 in International Journal of Secondary Metabolite
Verified
Journal Article
Open access
PDF file
STShyryn Tolekova
Shyryn Tolekova
TSTuregeldy Sharmanov
Turegeldy Sharmanov
YSYuriy Sinyavskiy
Yuriy Sinyavskiy
RBRamza Berzhanova
Ramza Berzhanova
RMRamazan Mammadov
Ramazan Mammadov
RYRusif Yusi̇fLi̇
Rusif Yusi̇fLi̇
Currently, increased attention is paid to plant raw materials as a source of biologically active substances. As a consequence of this great scientific interest is dog rose (lat. Rosa), a genus of wild plants of the Rosaceae family (Rosales) and it is widely used as a medicinal, vitamin source and food raw material. The species of Rosa genus have rich vitamin content and different chemical structures. Dog rose has medicinal value as a multivitamin remedy. Many works have been devoted to the study of the dynamics of the accumulation of vitamins depending on the forms and types of dog rose, geographic location, meteorological conditions, soil, fertilizer application and other environmental factors. The most economically valuable part of the dog rose is the pulp of the fruit. Rosa is used in official and traditional medicine. They also have anti-inflammatory, choleretic, diuretic properties and a beneficial effect on carbohydrate metabolism and, they regulate the activity of the gastrointestinal tract, enhance tissue regeneration, the synthesis of hormones. In this review article, antioxidant, pharmacological, medical properties and chemical content of the Rosa genus has been discussed in detail.

31 March 2016 in Acta Biochimica Polonica
Verified
Journal Article
Open access
TMTogzhan Mukasheva
Togzhan Mukasheva
RBRamza Berzhanova
Ramza Berzhanova
LILyudmila Ignatova
Lyudmila Ignatova
AOAnel Omirbekova
Anel Omirbekova
YBYelena Brazhnikova
Yelena Brazhnikova
MSMaya Shigaeva
Maya Shigaeva
In this study, 382 isolates of bacterial endophytes from tissues of plants grown in the foothills and piedmont plains of the Trans-Ili Alatau were isolated. It was found that certain strains actively produce indole-3-acetic acid (IAA) in a medium containing l-tryptophan. Among the strains studied, 26 strains (66%) showed a positive response to production of IAA. Bacteria synthesized IAA in the range of 18.6 ± 1.1 to 82.4 ± 2.3 µg/ml. IAA was synthesized more actively by Streptosporangium sp. KK1 (44.1 µg/ml), Rhodococcus sp. KK 2 (42.5 µg/ml), Streptomyces tendae KK3 (44.9 µg/ml) strains. The most active auxin's producer is a Jeotgalicoccus halotolerans BAK1 strain, whose total level of IAA production reached 82.4 µg/ml. Such strains as Streptomyces griseorubiginosis KK4, Streptomyces sp. KK5 and Jeotgalicoccus halotolerans BAK1 were found to have a significant stimulating effect which was reflected in the increase of the length of the roots of soybean and barley. As a result, 8 promising strains with fungicidal, growth-stimulating, phosphorus dissolving and enzymatic activities were selected for the further development of highly microbiological preparations for crop research.

29 October 2023 in Gels
Verified
Journal Article
Open access
PDF file
IGIskander Gussenov
Iskander Gussenov
RBRamza Berzhanova
Ramza Berzhanova
TMTogzhan Mukasheva
Togzhan Mukasheva
Gulnur TatykhanovaGulnur Tatykhanova
Gulnur Tatykhanova
BIBakyt A. Imanbayev
Bakyt A. Imanbayev
Sarkyt KudabergenovSarkyt Kudabergenov
Sarkyt Kudabergenov
Extensive laboratory and field tests have shown that the gelation response of gellan gum to saline water makes it a promising candidate for enhanced oil recovery (EOR). The objective of this mini-review is to evaluate the applicability of gellan gum in EOR and compare its efficiency to other precursors, in particular, hydrolyzed polyacrylamide (HPAM). At first, the “sol-gel” phase transitions of gellan gum in aqueous-salt solutions containing mono- and divalent cations are considered. Then the rheological and mechanical properties of gellan in diluted aqueous solutions and gel state are outlined. The main attention is paid to laboratory core flooding and field pilot tests. The plugging behavior of gellan in laboratory conditions due to “sol-gel” phase transition is discussed in the context of conformance control and water shut-off. Due to its higher strength, gellan gum gel provided ~6 times greater resistance to the flow of brine in a 1 mm-width fracture compared to HPAM gel. The field trials carried out in the injection and production wells of the Kumkol oilfield, situated in Kazakhstan, demonstrated that over 6 and 11 months, there was an incremental oil recovery of 3790 and 5890 tons, respectively. To put it into perspective, using 1 kg of dry gellan resulted in the incremental production of 3.52 m3 (or 22 bbls) of oil. The treatment of the production well with 1 wt.% gellan solution resulted in a considerable decrease in the water cut up to 10–20% without affecting the oil flow rate. The advantages and disadvantages of gellan compared to HPAM are analyzed together with the economic feasibility of gellan over HPAM. The potential for establishing gellan production in Kazakhstan is emphasized. It is anticipated that gellan gum, manufactured through fermentation using glucose–fructose syrup from Zharkent and Burunday corn starch plants, could be expanded in the future for applications in both the food industry and oil recovery.

22 September 2025 in Agronomy
Verified
Journal Article
Open access
PDF file
ANAsil Nurzhanova
Asil Nurzhanova
BEBoulygina A. Eugenia
Boulygina A. Eugenia
ИСИрина Сунгурцева
Ирина Сунгурцева
AMAigerim Mamirova
Aigerim Mamirova
RBRamza Berzhanova
Ramza Berzhanova
AMAnna Yu. Muratova
Anna Yu. Muratova
Soil contamination in industrial areas often involves complex mixtures of contaminants, making remediation a significant challenge. Microbe-assisted phytoremediation offers a promising solution, yet its success depends on understanding interaction between plants, microorganisms, and contaminants in rhizosphere. This study examined the effects of organic (oil sludge) and inorganic (Zn) contaminants, applied individually and in combination, on the rhizosphere bacterial community of Miscanthus × giganteus Greef et Deu (M×g), with emphasis on strains exhibiting plant growth-promoting, hydrocarbon-degrading, and metal-tolerant traits. A one-season greenhouse experiment included soils spiked with Zn (1650 mg kg−1) and/or oil sludge (15 mL kg−1). Oil sludge exerted a stronger influence on the taxonomic structure of rhizobacterial communities than Zn, largely shaping the patterns observed under co-contamination. Zn exposure increased the relative abundance of Actinobacteriota, whereas oil sludge favoured Proteobacteriota. Both contaminants, individually and together, enhanced the proportion of Sphingomonadaceae. Across all treatments, taxa with potential plant-growth-promoting traits were present, while co-contaminated soil harboured microorganisms capable of hydrocarbon degradation, heavy metal tolerance, and plant growth promotion. These findings highlight the adaptive capacity of the M×g rhizobiome and support its application in phytoremediation. The isolation and characterisation of rhizosphere-associated strains provide basis for developing microbial bioagents to enhance biomass production and remediation efficiency in multi-contaminated environments.

20 August 2024 in Potravinarstvo Slovak Journal of Food Sciences
Verified
Journal Article
Open access
PDF file
FSFariza Sagyntay
Fariza Sagyntay
BTBaltash Tarabayev
Baltash Tarabayev
BMBayan Muldabekova
Bayan Muldabekova
AIAuelbek Iztaev
Auelbek Iztaev
GKGaukhar Kossaliyeva
Gaukhar Kossaliyeva
AKAnar Idashqyzy Kurmanbayeva
Anar Idashqyzy Kurmanbayeva
Currently, about 5% of the earth's population suffers from gluten-related disorders. Modern technologies for gluten-free diets and filling the protein deficit are aimed at manufacturing gluten-free (GF) pasta products using non-conventional plant raw materials with high biological value. GF grains and crops (rice, corn, buckwheat, amaranth, quinoa, etc.) are used to produce GF pasta products. However, there is a scarcity of studies that comprehensively understand GF flour addition on the nutritive, sensory and cooking properties. Therefore, the scope of this literature review covers the main types of non-conventional raw materials for GF pasta products and summarizes the research on pasta products made from them. Results indicate that the rheological and sensory attributes of pasta made from pure GF flours such as rice or corn still requires a deeper study of technological processes in producing GF pasta. Incorporating nutrient-dense ingredients such as amaranth, quinoa, sorghum, and chia flours not only enhances the nutritional profile of gluten-free pasta but also offers opportunities for diverse culinary applications. The improvement of sensory attributes in rice-, corn-, buckwheat-based pasta, coupled with the effective use of cooking enhancers like xanthan gum, transglutaminases, inulin, and alternative starches, paves the way for creating more palatable gluten-free options. As techniques such as high-temperature treatment, extrusion cooking, and starch pregelatinization become more refined, future developments may focus on optimizing these processes to further improve the texture, taste, and overall quality of gluten-free pasta. Continued research and innovation in ingredient selection and processing technologies will be crucial for meeting the growing demand for gluten-free products that do not compromise on culinary experience or nutritional value.