Mereke Alimzhanova

ORCID: 0000-0003-2641-0828
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About
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Research Areas
  • Probiotics and Fermented Foods
  • Analytical chemistry methods development
  • Analytical Chemistry and Chromatography
  • Microbial Metabolites in Food Biotechnology
  • Pesticide Residue Analysis and Safety
  • Mass Spectrometry Techniques and Applications
  • Plant-Microbe Interactions and Immunity
  • Petroleum Processing and Analysis
  • Food Industry and Aquatic Biology
  • Essential Oils and Antimicrobial Activity
  • Antioxidants, Aging, Portulaca oleracea
  • Soil and Environmental Studies
  • Fermentation and Sensory Analysis
  • Protein Hydrolysis and Bioactive Peptides
  • Plant Pathogenic Bacteria Studies
  • Advanced Chemical Sensor Technologies
  • Identification and Quantification in Food
  • Hydrogen's biological and therapeutic effects
  • Microbial bioremediation and biosurfactants
  • Pharmacological Effects and Assays
  • Antimicrobial Peptides and Activities
  • Chemical Thermodynamics and Molecular Structure
  • Effects and risks of endocrine disrupting chemicals
  • Enzyme Production and Characterization
  • Meat and Animal Product Quality

Al-Farabi Kazakh National University
2008-2024

National Research Institute for Veterinary Virology and Microbiology of Russia
2023

KazMunayGas (Kazakhstan)
2023

Global Health Research Center of Central Asia
2023

Institute of Physics and Technology
2022

Abai Kazakh National Pedagogical University
2021

National University
2019

Medicinal plants possess certain therapeutic properties including synergistic actions. Plant extracts and individual biological active compounds play a crucial role in the treatment prevention of different diseases. Recently, much attention has been paid to research aimed at finding antimicrobial agents among medicinal used folk medicine. According World Health Organization (WHO), problem resistance is global threat public health development. Thus, need create new plant origin determines...

10.53894/ijirss.v8i1.4421 article EN cc-by-nc International Journal of Innovative Research and Scientific Studies 2025-01-31

In the medicine of many countries, use herbal healing agents included a significant contribution to improving human health and well-being. Many antibiotics have been widely used treat infectious diseases caused by various pathogenic bacteria. However, increased multidrug resistance has led severity bacterial pathogens. Bacteria remain main causative that cause death, even in present day. This prompted scientists investigate alternative new molecules against strains. The interest for study is...

10.1155/2021/5434525 article EN cc-by The Scientific World JOURNAL 2021-01-22

Bacillus species produce different classes of antimicrobial and antioxidant substances: peptides or proteins with structural compositions molecular masses a broad range volatile organic compounds (VOCs), some which may serve as biomarkers for microorganism identification. The aim this study is the identification biologically active synthesized by five using gas chromatography coupled to mass spectrometry (GC-MS). current profoundly enhances knowledge antibacterial metabolites ensuring...

10.3390/molecules28227556 article EN cc-by Molecules 2023-11-12

A simple and rapid method based on miniaturized solid-phase microextraction (mini-SPME) followed by gas chromatography–mass spectrometry was developed to identify eight endocrine disruptors (atrazine, diethylstilbestrol, hexestrol, estrone, estradiol, ethinylestradiol, norgestrel, megestrel) in drinking water samples. Extraction parameters optimized further analyses performed using them. The optimum temperature for the determination of 80 °C; extraction preincubation times were 60 20 min,...

10.1016/j.fochx.2022.100345 article EN cc-by-nc-nd Food Chemistry X 2022-05-24

Medicinal plants remain as an important resource in the fight against many diseases, especially developing countries. Antioxidants are substances capable of delaying, retarding, and preventing oxidation lipids or that delay prevent free radical reactions during lipid oxidation. Natural antioxidants such ascorbic acid, tocopherol, phenolic compounds, flavonoids a safe alternative to chemical antioxidants. In present work, results antioxidant activity raw materials from cultivated plant...

10.1155/2022/6478977 article EN cc-by International Journal of Biomaterials 2022-04-22

Bacillus species produce different classes of antimicrobial and antioxidant substances: peptides or proteins with structural composition molecular mass a broad range volatile organic compounds (VOCs), some which may serve as biomarkers for microorganism identification. The aim this study is the identification biologically active synthesized by five using gas chromatography coupled to spectrometry (GC–MS). current profoundly enhances knowledge antibacterial metabolites ensuring unambiguous...

10.20944/preprints202310.0688.v1 preprint EN 2023-10-11

Kazakhstan ranks as the 12th largest oil producer globally and boasts a diverse range of crude oils. This research introduces method for distinguishing between different types oils based on biomarker analysis 28 from Western Southern using gas chromatography-mass spectrometry. Biomarkers serve valuable tools, especially in forensic investigations spills. These biomarkers effectively retain significant portion original natural product’s carbon structure, providing crucial evidence regarding...

10.3390/separations10110561 article EN cc-by Separations 2023-11-09

Vacuum-assisted headspace solid-phase microextraction (Vac-HS-SPME) could provide an alternative for extracting pesticides from grape samples. Vac-HS-SPME method is utilized to the simultaneous analysis of six various classes, namely boscalid, quizalofop-p-methyl, oxyfluorfen, fluroxypyr-meptyl, metribuzin and epoxiconazole. In this study investigated optimized impact independent variables, such as extraction temperature, time, fiber coating, incubation salt effect, sample volume, air...

10.1016/j.sampre.2024.100123 article EN cc-by Advances in Sample Preparation 2024-07-01

Present paper describes optimization of the method quantitative determination total petroleum hydrocarbons in soil samples using headspace solid - phase microextraction (SPME) combination with gas chromatography mass spectrometry (GC-MS). Effects moisture content and solvent additives<br />were studied. It was established that an increase leads to response reaching its maximum at 15-20% depending on type concentration followed by gradual decrease. For same hydrocarbons, from 0 20% may...

10.18321/ectj131 article EN Eurasian Chemico-Technological Journal 2012-10-10

The article presents a comparative analysis of various methods and conditions extraction from the plant Nicotiana tabacum l, harvested in Almaty region Republic Kazakhstan 2018. study extracts obtained by traditional method (Extraction using non-polar organic solvents at atmospheric pressure) solvent particular hexane, supercritical fluid extraction, carbon dioxide, under process. Three different modes were selected, namely: relatively low pressure 120 bar temperature 28°C, an elevated with...

10.5937/jaes17-21189 article EN Istrazivanja i projektovanja za privredu 2019-01-01

Determination of total petroleum hydrocarbons (TPH) in water is an important tool for monitoring contamination due to oil spills or leaking storage tanks. In this study, a screening method the quantification based on solid phase microextraction (SPME) combination with gas chromatography – mass spectrometry (GC-MS) presented. Extraction from samples were conducted by SPME fiber coating placed into headspace above water. Petroleum desorbed injection port chromatograph. The effect following...

10.18321/ectj112 article EN Eurasian Chemico-Technological Journal 2012-02-07
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