Olha Мykhailenko

ORCID: 0000-0003-3822-8409
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About
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Research Areas
  • Saffron Plant Research Studies
  • Phytochemicals and Antioxidant Activities
  • Phytochemistry and Biological Activities
  • Bioactive natural compounds
  • Flavonoids in Medical Research
  • Medicinal plant effects and applications
  • Agriculture and Biological Studies
  • Natural product bioactivities and synthesis
  • Natural Products and Biological Research
  • Essential Oils and Antimicrobial Activity
  • Phytochemical and Pharmacological Studies
  • Economic Issues in Ukraine
  • Biological Activity of Diterpenoids and Biflavonoids
  • Medicinal Plants and Bioactive Compounds
  • Economic and Business Development Strategies
  • Ethnobotanical and Medicinal Plants Studies
  • Plant Toxicity and Pharmacological Properties
  • Mangiferin and Mango Extracts
  • Chromatography in Natural Products
  • Natural Antidiabetic Agents Studies
  • Agriculture Market Analysis Ukraine
  • Botanical Studies and Applications
  • Allelopathy and phytotoxic interactions
  • Plant chemical constituents analysis
  • Ginkgo biloba and Cashew Applications

National University of Pharmacy
2016-2025

University College London
2023-2025

Kiel University
2024-2025

University College Lahore
2024

Medway School of Pharmacy
2024

Ministry of Health
2021-2023

The London College
2023

Candid
2023

Oles Honchar Dnipro National University
2023

National University of Food Technologies
2019-2022

The search for neuroprotective compounds in lavender is driven by its traditional use brain health, with antioxidant activity serving as a key mechanism reducing oxidative stress and supporting cognitive function. Lavender’s potential to protect neurons based on calming, anti-stress properties, which increase the brain’s resistance neurodegeneration. Although not medicinal plant Ukraine, it increasingly recognised properties widely cultivated country. Lavender Ukraine influenced both global...

10.3390/plants14020289 article EN cc-by Plants 2025-01-20

Climate change and human activities severely impact the viability of plants ecosystems, threatening environment, biodiversity, sustainable development plant-based products. Biotic abiotic (ecosystem) determinants affect species distribution long-term survival, which in turn influence quality used as herbal medicines other high-value In recent decades, diverse anthropogenic impacts have significantly affected these aspects. change, excessive plant exploitation, habitat loss, vulnerability,...

10.3389/fphar.2024.1496792 article EN cc-by Frontiers in Pharmacology 2025-02-03

It is important to conduct studies on the influence of environmental factors accumulation secondary metabolites in plants, as well cultivation plants and harvesting their raw material.In this study, we examined habitat types, soil composition, climatic altitude content phenolic compounds Iris species from different populations Latvia, Lithuania Ukraine.According high-performance liquid chromatography (HPLC) analysis, 25 (flavonoids, isoflavonoids, isoflavonoid glucosides, xanthones,...

10.1002/pca.2918 article EN Phytochemical Analysis 2020-01-21

The major groups of antioxidant compounds (isoflavonoids, xanthones, hydroxycinnamic acids) in the rhizome methanol extracts four Ukrainian Iris sp. (Iris pallida, hungarica, sibirica, and variegata) were qualitatively quantitatively analyzed using HPLC-DAD UPLC-MS/MS. Gallic acid, caffeic mangiferin, tectoridin, irigenin, iristectorigenin B, irisolidone, 5,6-dihydroxy-7,8,3′,5′-tetramethoxyisoflavone, irisolidone-7-O-β-d-glucopyranoside, germanaism nigricin recognized by comparing their...

10.3390/molecules25194588 article EN cc-by Molecules 2020-10-08

The aim of the work: Justification composition emulsion cream with extracts Lespedeza bicolor. Materials and methods: In development base cream, corn oil (Ukraine), propylene glycol (Germany), purified water, emulsifiers: xyliance (France), prolipid 141 (USA) lamecrem (France) were used. included liquid alcohol extract above-ground part bicolor, which obtained from harvested in Botanical Garden Ivan Franko National University Lviv (Lviv, Ukraine) flowering phase. studies used physicochemical...

10.15587/2519-4852.2025.322855 article EN ScienceRise Pharmaceutical Science 2025-02-28

The aim of the work: research on development and standardization an aqueous extract aerial part Lespedeza bicolor study pharmacotechnological parameters a gel with mangiferin. Materials methods: in studies obtaining extract, bicolor, harvested Botanical Garden Ivan Franko National University Lviv (Lviv, Ukraine) flowering phase, was used. Identification quantitative content biologically active compounds experimental samples extracts were carried out by chemical reactions, thin-layer...

10.15587/2519-4852.2025.322720 article EN ScienceRise Pharmaceutical Science 2025-02-28

Abstract: Green tea is a traditional drink found in Asian countries, made up of four derivatives. One the derivatives epigallocatechin-3-gallate (EGCG). EGCG provides therapeutic benefits for cancer, heart disease, diabetes, and obesity. However, its poor absorption instability limit effectiveness, which can be improved using nanoparticle encapsulation. This work comprehensive review studies on green polyphenols, impact pro-oxidants cancer prevention, their delivery nanotechnology. Other...

10.2174/0109298673348926250331150429 article EN Current Medicinal Chemistry 2025-04-17

Crocus sativus L. is one of the world’s most famous saffron production crops and its enormous by-products, such as leaves, are an excellent source bioactive compounds with potential nutritional applications. The total phenolic content leaves was 5.44 ± 0.01 mg GAE/g, flavonoid 2.63 0.05 RE/g, respectively. main in polyphenols, flavonoids by HPLC carboxylic acids, amino were also identified GC-MS. analyses revealed mangiferin a dominant constituent (1.26 0.02 mg/g). C. contains seven...

10.3390/scipharm89020028 article EN cc-by Scientia Pharmaceutica 2021-06-15

Abstract Background Saffron or stigmas of Crocus sativus L. is one the most valuable food products with interesting health-promoting properties. C. has been widely used as a coloring and flavoring agent. Stigmas secondary metabolites showed potent cytotoxic effects in previous reports. Methods The present study investigated chemical composition effect Ukrainian saffron crude extracts individual compounds against melanoma IGR39, triple-negative breast cancer MDA-MB-231, glioblastoma U-87 cell...

10.1186/s12906-021-03374-3 article EN cc-by BMC Complementary Medicine and Therapies 2021-07-21

The article examines modern theoretical and practical features of insurance defines its role functions in the economy state; place health financing system state is revealed; a conceptual approach to organization care on basis medical was developed; analyzed qualitative quantitative signs effective financial support healthcare industry by determining level Ukraine; voluntary as an element assessed; impact socio-economic factors potential social market investigated. degree development...

10.32782/bses.79-4 article EN Black Sea Economic Studies 2023-01-01

Iris pallida Lam kurutulmuş rizom ve yapraklarından elde edilen esansiyel yağın nitel nicel bileşimi Ukrayna'dan ilk kez okundu.Gereç Yöntemler: Buhar distilasyonuyla uçucu yağlar, gaz kromatografisi-kütle spektrometresi ile araştırıldı

10.4274/tjps.07379 article TR Turkish Journal of Pharmaceutical Sciences 2018-04-03

The aim of this research was the comparative study amino acids content in dry extracts Iridaceae plants Ukrainian flora: Juno bucharica leaves and corms, Gladiolus hybrid Zefir leaves, Iris hungarica variegata rhizomes, Crocus sativus stigmas, flowers, corms. A gas chromatography–mass spectrometry (GC–MS) method has been used. Separation samples carried out using a Shimadzu GC-MS-QP2010 equipped with an Rxi-5ms (Restek Corporation capillary column (30 m long, 0.25 mm outer diameter µm)...

10.3390/scipharm88010008 article EN cc-by Scientia Pharmaceutica 2020-02-07

The beneficial health properties of organic acids make them target compounds in multiple studies. This is the reason why developing a simple and sensitive determination investigation method priority. In this study, an effective has been established for (lactic, glycolic, malic) saffron stigmas. N-(tert-butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) was used as derivatization reagent gas chromatography combined with mass spectrometric detection (GC/MS). stigmas extract evaporated to...

10.3390/molecules25153427 article EN cc-by Molecules 2020-07-28

Lavandula L. genus plants have always been relevant as medicines for various purposes in food, medicine, pharmaceuticals, cosmetology and aromology. Ukraine is a new territory the mass plant cultivation lavender essential oil production. Therefore, issue of integrated use herbal raw materials their intended still relevant. For first time, ten samples Lavendula angustifolia herb from 5 growing regions were studied composition content polyphenols terpenoids using HPLC HPTLC methods,...

10.1002/cbdv.202400640 article EN Chemistry & Biodiversity 2024-08-11

The chemical compositions of 15 saffron samples from 11 countries (Morocco, India, Italy, Spain, Germany, Switzerland, Iran, Lithuania, Ukraine, Australia, and Azerbaijan) were evaluated. analyzed regarding the impact environmental factors on composition apocarotenoids phenolic constituents. Quantification metabolites was carried out using high-performance liquid chromatography. It found that high content chlorogenic acid (0.2 mg/g, Ukraine) ferulic (0.28 India) controlled by duration solar...

10.1002/ardp.202100468 article EN Archiv der Pharmazie 2022-01-19

Objetivo: El objetivo del trabajo es el aislamiento y la identificación de los compuestos fenólicos losrizomas Iris hungarica.Materiales métodos: Se utilizaron métodos químicos espectrales para conocer las estructuras compuestosfenólicos que se aislaron rizomas hungarica Waldst. et Kit. (Familia Iridaceae).Los obtuvieron mediante cromatografía en columna sobre gel sílice determinaronsus análisis sus espectros por UV, IR, MS, 1H-RMN. determinó cribadopreliminar actividad...

10.30827/ars.v58i1.5919 article ES cc-by-nc-sa Ars Pharmaceutica (Internet) 2017-03-20

The application of the Quality by Design (QbD) concept to extracts obtained from Crocus sativus perianth with potential anticancer activity will ensure safety, efficiency, and quality control entire technological process, as well determine critical factors affecting extracts. Potentially points production plant extracts, including cultivation processing materials, extraction choice solvents, were identified using Ishikawa diagram FMEA risk assessment methods corrective actions proposed....

10.3390/scipharm90010019 article EN cc-by Scientia Pharmaceutica 2022-03-03

The composition of secondary metabolites undergoes significant changes in plants depending on the growth phase and influence environmental factors. Therefore, it is important to determine harvesting time plant material for optimum metabolite profile therapeutic activity primary material. shoots Epilobium angustifolium are used as a healing tea due presence polyphenolic compounds. aim this study was assess phenolic compounds triterpenoid saponins E. leaves flowers estimate dynamics their...

10.3390/plants13010120 article EN cc-by Plants 2023-12-31

Crocus sativus L. (saffron) has been traditionally used as a food coloring or flavoring agent, but recent research shown its potent pharmacological activity to tackle several health-related conditions. sp. leaves, and petals are the by-products of saffron production not usually in medicine industries. The present study was designed determine chemical composition water ethanolic extracts C. leaves test their cytotoxic against melanoma (IGR39) triple-negative breast cancer (MDA-MB-231) cell...

10.3390/molecules27010010 article EN cc-by Molecules 2021-12-21

Ion association of glycine, \a-alanine and \�-alanine in water water+ D-glucose mixtures at different temperaturesSanjibita Das Upendra N. Dash

10.7324/japs.2023.108931 article EN Journal of Applied Pharmaceutical Science 2023-01-01

Abstract: The average worldwide human life expectancy is 70 years, with a significantly higher value in Western societies. Many modern diseases are not associated premature mortality but decreased quality of aged patients and an excessive accumulation various toxic compounds the body during life. Today, scientists especially interested finding that can help increase healthy lifespan by detoxifying body. Phytotherapy specific approaches used alternative medicine to remove toxins from...

10.2174/1381612829666230809094242 article EN Current Pharmaceutical Design 2023-08-10
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