- Essential Oils and Antimicrobial Activity
- Phytochemistry and Biological Activities
- Natural product bioactivities and synthesis
- Sesquiterpenes and Asteraceae Studies
- Plant chemical constituents analysis
- Plant biochemistry and biosynthesis
- Phytochemicals and Antioxidant Activities
- Traditional Chinese Medicine Analysis
- Analytical Chemistry and Chromatography
- Phytochemical compounds biological activities
- Plant Ecology and Taxonomy Studies
- Bee Products Chemical Analysis
- Ethnobotanical and Medicinal Plants Studies
- Insect Pest Control Strategies
- Pharmacological Effects of Natural Compounds
- Nigella sativa pharmacological applications
- Plant Pathogens and Fungal Diseases
- Allelopathy and phytotoxic interactions
- Medicinal Plant Research
- Botanical Research and Chemistry
- Nuts composition and effects
- Bioactive Compounds and Antitumor Agents
- Phytochemistry and Bioactive Compounds
- Traditional and Medicinal Uses of Annonaceae
- Biological Activity of Diterpenoids and Biflavonoids
Anadolu University
2016-2025
Eskişehir City Hospital
2015-2024
Trakya University
2023
Beltsville Agricultural Research Center
2008
Shanghai Academy of Agricultural Sciences
2008
University of Mississippi
2008
Louisiana State University Agricultural Center
2008
ABSTRACT In Turkey Origanum is represented by 23 species comprising 31 taxa. Commercially important include O. onites, majorana, minutiflorum, vulgare and syriacum. These are annually exported in quantities exceeding 4,000 tons. GC GC/MS profiles of the essential oils above mentioned presented a comparative manner. Oils from subsp. hirtum were found to contain carvacrol (23.4–78.7%) thymol (0.01–39.8%), while syriacum var. bevanii contained (42.5%) (24.8%). majorana minutiflorum appeared be...
Bioassay-guided fractionation of the chloroform extract from roots Angelica sinensis led to isolation and characterization (Z)-ligustilide using direct-bioautography with Colletotrichum species. The structure was confirmed by 1H 13C NMR spectroscopy GC/MS. (Z)-Ligustilide deterred biting two mosquito species more effectively than DEET. Three different A. accessions one archangelica root oil were evauated GC GC/MS, dominant component in 61−69% (Z)-ligustilide. Two other prominent compounds...
Essential oils (EOs) were obtained by hydrodistillation of various parts Ferula ovina (Boiss.) Boiss., iliensis Krasn. ex. Korovin, and akitschkensis B. Fedtsch. ex Koso-Pol., collected in the flowering/budding fruiting stages. Eight samples EOs isolated from F. four akitsckensis analyzed gas chromatography⁻mass spectrometry (GC-MS). The major constituents α-pinene (6.9⁻47.8%), β-pinene (1.5⁻7.1%), sabinene (0.1⁻20.5%), β-phellandrene (0⁻6.5%), trans-verbenol (0.9⁻7.4%), eremophilene...
Context: Almond oil is used in traditional and complementary therapies for its numerous health benefits due to high unsaturated fatty acids content.Objectives: This study investigated the composition vitro anticancer activity of almond from Northern Cyprus compared with Turkey.Materials methods: was obtained by supercritical CO2 extraction analyzed GC-MS. Turkey provided Turkish pharmacies. Different concentrations oils were incubated 24 48 h Colo-320 Colo-741 cells. Cell growth cytotoxicity...
Hypericum L. (Hypericaceae) extracts have been used for their therapeutic effects; however, not much is known about the immunomodulatory activity of essential oils extracted from this plant. We isolated flowers and leaves H. perforatum analyzed chemical composition innate activity. Analysis flower (HEOFl) versus leaf (HEOLv) using gas chromatography–mass spectrometry revealed that HEOFl was comprised mainly monoterpenes (52.8%), with an abundance oxygenated monoterpenes, including...
Abstract Chlorogenic (5‐CQA), 1,5‐, 3,5‐, 4,5‐ and 3,4‐dicaffeoylquinic (DCQA) acids were identified quantified in the methanol extracts of Inula oculus‐christi L., I. bifrons aschersoniana Janka var. , ensifolia conyza ( Griess .) DC. germanica L. by HPLC analysis. The amount 5‐CQA varied from 5.48 to 28.44 mg/g DE highest content was detected . 1,5‐DCQA (4.05–55.25 DE) most abundant dicaffeoyl ester quinic acid followed 3,5‐DCQA, 4,5‐DCQA 3,4‐DCQA. extract showed total phenolic...
Kumquat, known as the little jewel of citrus family, is a fruit plant Citrus japonica Thunb. or Fortunella Swingle. Kumquat widely grown for its fruit, but such parts leaves and bark are left waste without being utilized. Therefore, we aimed to determine chemical composition essential oils from kumquat (main species 6 mutants) at Mersin Alata Horticultural Research Institute. The fruits fortunella trees were collected their obtained by hydrodistillation. Gas chromatography-mass spectrometry...
Plants of the Artemisia genus (Asteraceae) are integral to cultural heritage Alpine communities, where they used in herbal infusions and alcoholic beverages. This study analysed volatile composition A. genipi Weber umbelliformis Lam. from Central Alps using microsteam distillation (MSD) combined with solid-phase microextraction (SPME) identify compounds influencing their flavour. Chemical analysis revealed distinct profiles, showing a higher proportion monoterpene hydrocarbons (32.8%) than...
Abstract The chemical composition of essential oils from leaves and branches + Myrtus communis L. (Myrtaceae) was examined by GC/MS technique. main components were found to be 1,8-cineole (18.3% 10.5%), linalool (16.3% 18.6%) myrtenyl acetate (14.5% 10.8%). Key Word Index: Myrtaceaeessential oil compositionlinaloolmyrtenyl acetate1,8-cineole
Abstract Water‐distilled essential oils from herbal parts of Tanacetum armenum (DC.) Schultz Bip., T. balsamita L.(syn. Balsamita major ), chiliophyllum (Fisch. & Mey.) Bip. var. and haradjani (Rech. Fil.) Grierson (endemic) (Compositae) Turkey were analysed by GC–MS. The leaf herb characterized with 1,8‐cineole (31% 11%) camphor (9% 27%), respectively, as the main constituents. component in oil was carvone (52%). Camphor (17% 16%) constituent , respectively. enantiomeric distribution...
ABSTRACT Water distilled essential oils of 23 collections Origanum vulgare subsp. hirtum from the Aegean region Turkey were analyzed by GC and GC/MS. Forty-eight compounds which amounted to 95.09–99.49% total components detected identified. Carvacrol content in varied between 23.43–78.73%.
Essential oils were obtained by hydrodistillation of the umbels+seeds and stems Ferula akitschkensis (FAEOu/s FAEOstm, respectively) analyzed gas chromatography chromatography-mass spectrometry. Fifty-two compounds identified in FAEOu/s; primary components sabinene, α-pinene, β-pinene, terpinen-4-ol, eremophilene, 2-himachalen-7-ol, whereas FAEOstm myristicin geranylacetone. FAEOu/s, γ-terpinene, geranylacetone, isobornyl acetate, (E)-2-nonenal stimulated [Ca(2+)]i mobilization human...
Despite their reported therapeutic properties, not much is known about the immunomodulatory activity of essential oils present in Artemisia species. We isolated from flowers and leaves five species: A. tridentata, ludoviciana, dracunculus, frigida, cana. The chemical composition oil samples had similarities differences as compared to those previously literature. main components obtained cana were camphor (23.0–51.3%), 1,8-cineole (5.7–30.0%), camphene (1.6–7.7%), borneol (2.3–14.6%),...
Abstract The essential oils from 20 samples of wild and cultivated collections Satureja hortensis L. were investigated by GC GC/MS. forms contained carvacrol (42–63%) as the major constituent. Thymol (29–43%) was main component in S. hortensis.
ABSTRACT Essential oil composition of four subspecies Origanum vulgare L. (Labiatae, Sect. Majorana); subsp. hirtum (Link) Ietswaart, gracile (C. Koch) and viride (Boiss.) Hayek growing wild in Turkey have been examined by GC GC/MS analysis. More than 80 constituents were identified the samples subspecies. O. was rich carvacrol (70.47%), while contained β-caryophyllene (17.54%) germacrene D (12.75%) as dominant constituents. The major components terpinen-4-ol (16.82%) (15.87%), + (20.94%) (17.80%).
Heteropyxis natalensis (Heteropyxidaceae) is traditionally used to treat respiratory disorders, and as a decongestant antimicrobial agent. The seasonal variation of the hydrodistilled essential oil was investigated. Three trees in Johannesburg Botanical Garden (Gauteng) indicated similar chemical profiles with fluctuation levels two major constituents (1,8-cineole limonene). Little between activity seasonally collected samples documented, standard deviations ± 0.3 3.3 depending on pathogen...
Little is known about the pharmacological activity of Monarda fistulosa L. essential oils. To address this issue, we isolated oils from flowers and leaves M. analyzed their chemical composition. We also effects on transient receptor potential (TRP) channel activity, as these channels are targets various oil constituents. Flower (MEOFl) leaf (MEOLv) were comprised mainly monoterpenes (43.1% 21.1%) oxygenated (54.8% 77.7%), respectively, with a high abundance monoterpene hydrocarbons,...
Rhododendron (Ericaceae) extracts contain flavonoids, chromones, terpenoids, steroids, and essential oils are used in traditional ethnobotanical medicine. However, little is known about the immunomodulatory activity of isolated from these plants. Thus, we flowers leaves R. albiflorum (cascade azalea) analyzed their chemical composition innate activity. Compositional analysis flower (REOFl) versus leaf (REOLv) revealed significant differences. REOFl was comprised mainly monoterpenes (92%),...