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The Identification of Suberosin from Prangos pabularia Essential Oil and Its Mosquito Activity Against Aedes aegypti
Tabanca, Nurhayat; Tsikolia, Maia; Özek, Gülmira; Özek, Temel; Ali, Abbas; Bernier, Ulrich R.; Khan, Ikhlas A. (Acg Publications, 2016)A detailed analysis of Prangos pabularia Lindl. (Apiaceae) fruit oil was performed by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Bicyclogermacrene (21%), (Z)-beta-ocimene (19%), alpha-humulene ... -
The identification of suberosin from prangos pabularia essential oil and its mosquito activity against aedes aegypti
Tabanca, Nurhayat; Tsikolia, M.; Özek, Gülmira; Özek, Temel; Ali, Abbas; Bernier, Ulrich R. (ACG Publications, 2016)A detailed analysis of Prangos pabularia Lindl. (Apiaceae) fruit oil was performed by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Bicyclogermacrene (21%), (Z)-ß-ocimene (19%), ?-humulene ... -
In the present work, Microsteam distillation - Solid phase microextraction (MSD-SPME) and hydrodistillation (HD) techniques were applied to obtain volatiles from Achillea sivasica, an endemic species from Turkey. GC-FID and GC/MS analysis revealed that 1,8-cineole (22.1%) and ?-pinene (9.3%) were the main constituents of the hydrodistilled flower volatiles. (Z)-?-Farnesene (23.9%), decanoic acid (10.1%), ??eudesmol (8.0%), tricosane (7.3%) and hexadecanoic acid (7.2%) were the main volatiles obtained from flowers by MSDSPME. The leaf volatiles obtained by HD contained camphor (9.0%), ?-pinene (6.9%), 1,8-cineole (6.7%), ?-pinene (6.7%) and??-bisabolol (6.6%) as the main constituents while the leaf volatiles obtained by MSD-SPME technique were rich in (E)-geranyl acetone (10.5%), (E)-?-ionone (10.3%), camphor (10.2%), 1,8-cineole (9.6%), longiverbenone (7.9%), ?-eudesmol (7.5%), isopropyl myristate (6.7%) and epi-?-bisabolol (6.4%). The root volatiles were rich in longiverbeno
In the present work, Microsteam distillation - Solid phase microextraction (MSD-SPME) and hydrodistillation (HD) techniques were applied to obtain volatiles from Achillea sivasica, an endemic species from Turkey. GC-FID ... -
Inhibition of Human Neutrophil Responses by the Essential Oil of Artemisia kotuchovii and Its Constituents
Schepetkin, Igor A.; Kushnarenko, Svetlana V.; Özek, Gülmira; Kirpotina, Liliya N.; Utegenova, gülzhakhan A.; Kotukhov, Yuriy A.; Quinn, Mark T. (American Chemical Society, 2015)Essential oils were obtained by hydrodistillation of the flowers+leaves and stems of Artemisia kotuchovii Kupr. (AKEO(f+l) and AKEO(stm), respectively) and analyzed by gas chromatography (GC) and gas chromatography,mass ... -
Investigation of Galatella villosa and G. tatarica for antioxidant, ?-amylase, tyrosinase, lipoxygenase and xanthine oxidase inhibitory activities
Özek, Gülmira; Ishmuratova, Margarita; Yur, S.; Göğer, Fatih; Haliloğlu, Yeşim; Başer, K. Hüsnü Can; Özek, Temel (Natural Product Incorporation, 2017)In the present work two Galatella species, Galatella villosa Rchb.f. and Galatella tatarica (Less.) Novopokr collected from Kazakhstan were subjected to hydrodistillation to yield essential oils (EOs), and to maceration ... -
Investigation of Galatella villosa and G. tatarica for Antioxidant, alpha-Amylase, Tyrosinase, Lipoxygenase and Xanthine Oxidase Inhibitory Activities
Özek, Gülmira; Ishmuratova, Margarita; Yur, Süleyman; Göğer, Fatih; Haliloğlu, Yeşim; Başer, K. Hüsnü Can; Özek, Temel (Natural Products Inc, 2017)In the present work two Galatella species, Galatella villosa Rchb.f. and Galatella tatarica (Less.) Novopokr collected from Kazakhstan were subjected to hydrodistillation to yield essential oils (EOs), and to maceration ... -
Isolation of eudesmane type sesquiterpene ketone from Prangos heyniae H.Duman & MFWatson essential oil and mosquitocidal activity of the essential oils
Özek, Gülmira; Bedir, Erdal; Tabanca, Nurhayat; Ali, Abbas; Khan, Ikhlas A.; Duran, Ahmet; Özek, Temel (De Gruyter Poland Sp Zoo, 2018)In the present work, an endemic species Prangos heyniae collected in four locations from Turkey was subjected to hydrodistillation in Clevenger type apparatus to obtain the essential oils (E01-4). The gas chromatography/mass ... -
Lagoecia cuminoides L. bitkisinin uçucu yağ ve ekstrelerinin kimyasal ve biyolojik aktivite açısından değerlendirilmesi
Özek, Gülmira; Anadolu Üniversitesi, Sağlık Bilimleri Enstitüsü; Berdanoğlu, Ceyda Afşin (Anadolu Üniversitesi -Sağlık Bilimleri Enstitüsü, 2021)Türkiye'nin Antalya bölgesinde toplanan Lagoecia cuminoides L. bitkisi üzerinde kapsamlı kimyasal kompozisyon ve biyolojik aktivite araştırması gerçekleştirilmiştir. Bitki meyvesinden hidrodistilasyon yöntemi ile uçucu ... -
Lipid and essential oil constituents of cota hamzaoglui Özbek & vural (Asteraceae)
Özek, Gülmira; Özbek, M. U.; Arslan, M. (Turkish Chemical Society, 2018)In the present work, lipids and essential oil constituents of endemic Cota hamzaoglui Özbek & Vural were investigated with GC-FID/MS techniques. The fatty acids fraction was isolated with liquid-liquid extraction from ... -
Modulation of Human Neutrophil Responses by the Essential Oils from Ferula akitschkensis and Their Constituents
Schepetkin, Igor A.; Kushnarenko, Svetlana V.; Özek, Gülmira; Kirpotina, Liliya N.; Sinharoy, Pritam; Utegenova, gülzhakhan A.; Quinn, Mark T. (American Chemical Society, 2016)Essential oils were obtained by hydrodistillation of the umbels+seeds and stems of Ferula akitschkensis (FAEO(u/s) and FAEO(stm), respectively) and analyzed by gas chromatography and gas chromatography-mass spectrometry. ... -
The Needle Oil of Pinus caribaea Morelet From Nigeria
Moronkola, Dorcas O.; Ogunwande, Isiaka A.; Oyewole, İsaac O.; Başer, K. Hüsnü Can; Özek, Temel; Özek, Gülmira (Taylor & Francis Inc, 2009)Essential oil composition of fresh needles from Pinus caribaea Morelet (Carribean pine) grown in Nigeria was investigated by a combination of CC and GC/MS. The 44 oil constituents, obtained by hydrodistillation, were largely ... -
One-step multiple component isolation from the oil of Crinitaria tatarica (Less.) Sojak by preparative capillary gas chromatography with characterization by spectroscopic and spectrometric techniques and evaluation of biological activity
Özek, Gülmira; Ishmuratova, Margarita; Tabanca, Nurhayat; Radwan, Mohammed M.; Göğer, Fatih; Özek, Temel; Başer, K. Hüsnü Can (Wiley-V C H Verlag GMBH, 2012)Gas chromatographic analysis revealed that the oil of Crinitaria tatarica was rich in sabinene (32.1%), beta-pinene (8.8%), and two unknown (M+200) compounds (I) and (II) (21.4% and 3.4%). One-step multiple fractionation ... -
Phytochemical profiling and evaluation of marrubium sivasense aytaç, akgül & ekici for antioxidant activity and inhibition effects on ?-amylase, lipoxygenase, xanthine oxidase and tyrosinase enzymes
Göğer, Fatih; Özek, Gülmira; Tekin, M.; Yur, S.; Özek, Temel (Turkish Chemical Society, 2019)In the present study, the extract of an endemic plant ourkey Marrubium sivasense Aytaç, Akgül & Ekici was investigated for phytochemical profile, antioxidant properties and inhibition of several enzymes. The chemical ... -
Phytochemicals, antioxidant, and antityrosinase activities of Achillea sivasica Celik and Akpulat
Haliloğlu, Yeşim; Özek, Temel; Tekin, Mehmet; Göğer, Fatih; Başer, K. Hüsnü Can; Özek, Gülmira (Taylor & Francis Inc, 2017)The present study is the first report on essential oil (EO) composition, phytochemicals, and biological potential of Achillea sivasica tested against free radicals, oxidative damage, and tyrosinase enzyme. Gas-Chromatography ... -
A preliminary examination of the composition of the seed oil of Matthiola anchoniifolia Hub.-Mor. obtained by microdistillation
Kırımer, Neşe; Özek, Gülmira; Özek, Temel; Başer, K. Hüsnü Can; Duran, Ahmet (Allured Publ Corp, 2006)An essential oil obtained from the crushed seeds of Matthiola anchoniifolia Hub.-Mor. (Cruciferae) was obtained by microdistillation and analyzed by both GC and GUMS. Octyl acetate (21.2%) was identified as the main ... -
Preparative Capillary GC for Characterization of Five Dracocephalum Essential Oils from Mongolia, and their Mosquito Larvicidal Activity
Özek, Gülmira; Tabanca, Nurhayat; Radwan, Mohammed M.; Shatar, Sanduin; Altantsetseg, Altaa; Baatar, Dumaajav; Özek, Temel (Natural Products Inc, 2016)The chemical composition and mosquito larvicidal and adulticidal activity of five essential oils (EOs),Dracocephalum ruyschiana L. (DR), D. foetidum Bunge (DF), D. moldavica L. (DM), D. fruticztlosum Steph. ex Willd. (DFr) ... -
Salvia hispanica L. tohumlarının fitokimyasal ve biyolojik aktivite açısından araştırılması
Özek, Gülmira; Anadolu Üniversitesi, Sağlık Bilimleri Enstitüsü; Doğan, Hilal (Tez (yüksek lisans) - Anadolu Üniversitesi, 2019)Salvia hispanica L., chia adıyla bilinen, tropik ya da ılıman iklimde yetişen, beyaz ya da siyah renkli olup üzerinde koyu renkli noktalar bulunan Lamiaceae temsilcisidir. Bu çalışmada, S. hispanica tohumları metanol ve ... -
Salvia hispanica L. tohumlarının fitokimyasal ve biyolojik aktivite açısından araştırılması
Özek, Gülmira; Anadolu Üniversitesi, Sağlık Bilimleri Enstitüsü; Doğan, Hilal (Tez (yüksek lisans) - Anadolu Üniversitesi, 2019)Salvia hispanica L., chia adıyla bilinen, tropik ya da ılıman iklimde yetişen, beyaz ya da siyah renkli olup üzerinde koyu renkli noktalar bulunan Lamiaceae temsilcisidir. Bu çalışmada, S. hispanica tohumları metanol ve ...