Yazar "Özek, Gülmira" için listeleme
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11-Hydroxy-2,4-cycloeudesmane from the Leaf Oil of Juglans regia and Evaluation of its Larvicidal Activity
Köroğlu, Ayşegül; Baldemir, Ayşe; Özek, Gülmira; Bedir, Erdal; Tabanca, Nurhayat; Ali, Abbas; Özek, Temel (Sage Publications Inc, 2016)Leaves of Juglans regia L. collected from two different locations [Adana (A) and Ankara (BA from Turkey were subjected to hydrodistillation in a Clevenger type apparatus to yield the essential oils (EOs). GC/MS and GC-FID ... -
Assessment of Endemic Cota fulvida (Asteraceae) for Phytochemical Composition and Inhibitory Activities against Oxidation, alpha-Amylase, Lipoxygenase, Xanthine Oxidase and Tyrosinase Enzymes
Özek, Gülmira; Özbek, M. Ufuk; Yur, Süleyman; Göğer, Fatih; Arslan, Münevver; Özek, Temel (Acg Publications, 2019)In the present work, chemical compositions of essential oil and methanol extract of endemic Cota fulvida (Grierson) Holub were investigated as well as their antioxidant, antidiabetic, antiinflammatory and antimelanogenesis ... -
Biological Evaluation, Overpressured Layer Chromatography Separation, and Isolation of a New Acetylenic Derivative Compound from Prangos platychlaena ssp platychlaena Fruit Essential Oils
Tabanca, Nurhayat; Wedge, David E.; Li, Xing-Cong; Gao, Zengping; Özek, Temel; Bernier, Ulrich R.; Özek, Gülmira (Akademiai Kiado Zrt, 2018)In the present work, fruits of Prangos platychlaena Boiss. ex Tchihat. ssp. platychlaena (Apiaceae) collected from eastern (sample A) and central (sample B) parts of Turkey were subjected to hydrodistillation to yield ... -
Chemical and Biological Diversity of the Leaf and Rhizome Volatiles of Acorus calamus L. from Turkey
Suzgec-Selçuk, Sevda; Özek, Gülmira; Meriçli, Ali Hikmet; Başer, K. Hüsnü Can; Haliloğlu, Yeşim; Özek, Temel (Taylor & Francis LTD, 2017)Two different isolation techniques, conventional hydrodistillation (HD) and micro-steam distillation-solid-phase microextraction (MSD-SPME), have been used to analyze the volatile constituents from the leaves and rhizomes ... -
Chemical Composition and Antibacterial Activity of Essential Oils from Ferula L. Species against Methicillin-Resistant Staphylococcus aureus
Utegenova, gülzhakhan A.; Pallister, Kyler B.; Kushnarenko, Svetlana V.; Özek, Gülmira; Özek, Temel; Abidkulova, Karime T.; Voyich, Jovanka M. (MDPI, 2018)Essential oils (EOs) were obtained by hydrodistillation of various parts of Ferula ovina (Boiss.) Boiss., Ferula iliensis Krasn. ex. Korovin, and Ferula akitschkensis B. Fedtsch. ex Koso-Pol., collected in the flowering/budding ... -
Chemical composition and phagocyte immunomodulatory activity of Ferula iliensis essential oils
Özek, Gülmira; Schepetkin, Igor A.; Utegenova, gülzhakhan A.; Kirpotina, Liliya N.; Andrei, Spencer R.; Özek, Temel; Quinn, Mark T. (Wiley, 2017)Essential oil extracts from Ferula iliensis have been used traditionally in Kazakhstan for treatment of inflammation and other illnesses. Because little is known about the biologic activity of these essential oils that ... -
Chemical composition of essential oils from artemisia glabella kar. Et kir. and artemisia rupestris L. obtained by different extraction methods
Shaimerdenova, Z. R.; Makubayeva, A. I.; Özek, Temel; Özek, Gülmira; Yur, S.; Atazhanova, G. A.; Adekenov, S. M. (Badebio Biotechnololgy Ltd, 2018)The aim of the research was to investigate the chemical composition of essential oils and volatiles from two species of Artemisia glabella and Artemisia rupestris growing in Kazakhstan. Two different techniques, the ... -
Chemical composition of the oil of Cicuta virosa L. from Kazakhstan
Ishmuratova, M.; Özek, Temel; Özek, Gülmira; Başer, K. Hüsnü Can (Georg Thieme Verlag Kg, 2011)… -
Chemical Diversity and Biological Activity of the Volatiles of Five Artemisia Species from Far East Russia
Özek, Gülmira; Şuleimen, Yerlan; Tabanca, Nurhayat; Doudkin, Roman; Gorovoy, Petr G.; Göğer, Fatih; Başer, K. Hüsnü Can (Acg Publications, 2014)Artemisia argyi, A. feddei, A. gmelinii, A. manshurica, and A. olgensis (Asteraceae) were collected in Far East Russia. Oils were hydrodistilled and simultaneously analyzed by GC-FID and GC/MS. Main constituents were found ... -
Chemical diversity and biological potential of tanacetum praeteritum subsp. Praeteritum essential oils
Özek, Gülmira (Turkish Chemical Society, 2018)Two samples of Tanacetum praeteritum (Horwood) Heywood subsp. praeteritum (Horwood) were collected in flowering period and subjected separately to hydrodistillation to yield the essential oils (A and B). The oils were ... -
Chemical Diversity in Volatiles of Helichrysum plicatum DC. Subspecies in Turkey
Öztürk, Bintug; Özek, Gülmira; Özek, Temel; Başer, K. Hüsnü Can (Acg Publications, 2014)In the present work three subspecies of Helichrysum plicatum DC. (Helichrysum plicatum DC. subsp. plicatum, Helichrysum plicatum DC. subsp. polyphillum (Ledeb) P.H. Davis & Kupicha and Helichrysum plicatum DC. subsp. ... -
Chemical Diversity of Volatiles of Teucrium orientale L. var. orientale, var. puberulens, and var. glabrescens Determined by Simultaneous GC-FID and GC/MS Techniques
Özek, Gülmira; Özek, Temel; Dinç, Muhittin; Doğu, Süleyman; Başer, K. Hüsnü Can (Wiley-V C H Verlag GMBH, 2012)In the present work, three varieties of Teucrium orientale, var. orientale, var. puberulens, and var. glabrescens, were collected and investigated for chemical composition of the oils. Subsequent gas chromatography (GC-FID) ... -
Comparison of essential oil of Xanthogalum purpurascens Lallem. obtained via different isolation techniques
Özek, Gülmira; Özek, Temel; Başer, K. Hüsnü Can; Duran, Ahmet; Sağıroğlu, M (Allured Publ Corp, 2006)The essential oil of Xanthogalum purpurascens Lallem. was obtained by hydrodistillation (HD), microdistillation (MD) and micro-steam distilled solid-phase micro extraction (MSD-SPME) techniques. The oils were then analyzed ... -
Comparison of hydrodistillation and microdistillation methods for the analysis of fruit volatiles of Prangos pabularia Lindl., and evaluation of its antimicrobial activity
Özek, Gülmira; Özek, Temel; İşcan, Gökalp; Başer, K. Hüsnü Can; Hamzaoğlu, Ergin; Duran, Ahmet (Elsevier Science BV, 2007)The volatile constituents of Prangos pabularia Lindl. fruits (Umbelliferae) were obtained by hydrodistillation (HD) and microdistillation (MD) techniques, and then analyzed by gas chromatography (GC) and gas chromatography-mass ... -
Comparison of the Essential Oils of Prangos turcica A. Duran, M. Sagiroglu et H. Duman Fruits Obtained by Different Isolation Techniques
The essential oils from fruits of Prangos turcica A. Duran, M. Sagiroglu et H. Duman were obtained by hydrodistillation (HD), microdistillation (MD), micro-steam distilled solid-phase microextraction (MSD-SPME) techniques ... -
Comparison of the essential oils of Prangos turcica A. Duran, M. Sagiroglu et H. Duman fruits obtained by different isolation techniques
Özek, Gülmira; Özek, Temel; Başer, K. Hüsnü Can; Duran, Ahmet; Sağıroğlu, M.; Duman, Hayri (Allured Publ Corp, 2006)The essential oils from fruits of Prangos turcica A. Duran, M. Sagiroglu et H. Duman were obtained by hydrodistillation (HD), microdistillation (MD), micro-steam distilled solid-phase microextraction (MSD-SPME) techniques ... -
Comparison of the essential oils of three endemic Turkish Heracleum species obtained by different isolation techniques
Özek, Temel; Özek, Gülmira; Başer, K. Hüsnü Can; Duran, Ahmet (Allured Publ Corp, 2005)The essential oils of three Turkish endemic Heradeum species, H. crenatifolium Boiss., H. platytaenium Boiss. and H. sphondylium L. subsp. ternatum (Velen.) Brummitt were obtained using hydrodistillation (HD), microwave-assisted ... -
Composition and antimicrobial activity of the essential oil of Tanacetum cadmeum (Boiss.) heywood subsp orientale grierson
Özek, Gülmira; Özek, Ternel; İşcan, Goekalp; Başer, K. Hüsnü Can; Hamzaoğlu, Ergin; Duran, Ahmet (Allured Publ Corp, 2007)Water distilled essential oil of aerial parts of Tanacetum cadineum (Boiss.) Heywood subsp. orientale Grierson (Asteraceae) was analyzed by GC and GC/MS methods. Ninety three compounds have been characterized representing ...
