Browsing by Author "Özek, Temel"
Now showing items 21-40 of 213
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Chemical Composition, Antioxidant and Anticholinesterase Activities of the Essential oil of Origanum rotundifolium Boiss. from Turkey
Özbek, Hilal; Güvenalp, Zuhal; Özek, Temel; Sevindik, Handan G.; Yuca, Hafize; Yerdelen, Kadir O.; Demirezer, Lütfiye Ömür (Acg Publications, 2017)The essential oil was obtained by hydrodistillation from the aerial parts of Origanum rotundifolium Boiss. Its chemical content and composition were analyzed by using a gas chromatography (GC-FID) and gas chromatography-mass ... -
Chemical composition, antioxidant capacity, acetyl- and butyrylcholinesterase inhibitory activities of the essential oil of Thymus haussknechtii Velen
Sevindik, Handan G.; Özek, Temel; Yerdelen, K. Özden; Önal, Mehmet; Özbek, Hilal; Güvenalp, Zuhal; Demirezer, L. Ömür (ACG Publications, 2016)The chemical composition of the essential oil from the aerial parts of Thymus haussknechtii Velen. was analyzed by using gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The major component of ... -
Chemical Composition, Antioxidant Capacity, Acetyl- and Butyrylcholinesterase Inhibitory Activities of the Essential Oil of Thymus haussknechtii Velen.
Sevindik, Handan G.; Özek, Temel; Yerdelen, K. Özden; Önal, Mehmet; Özbek, Hilal; Güvenalp, Zuhal; Demirezer, L. Ömür (Acg Publications, 2016)The chemical composition of the essential oil from the aerial parts of Thymus haussknechtii Velen. was analyzed by using gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The major component of ... -
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) ... -
Chemotypic variations of the essential oils of Mentha taxa collected in the Marmara region of Turkey
Başer, K. Hüsnü Can; Kürkçüoğlu, Mine; Demirci, Betül; Özek, Temel; Tarımcılar, G. (Georg Thieme Verlag Kg, 2008)… -
Comparative study of the essential oils of Heracleum sphondylium ssp ternatum obtained by micro- and hydro-distillation methods
Özek, Temel; Demirci, Betül; Başer, K. Hüsnü Can (Consultants Bureau, 2002)The volatile compounds obtained by hydro- and micro-distillation methods from crushed fruits of Heracleum sphondylium ssp. ternatum (Velen.) Brummitt were analyzed by GC/MS. Both distillation methods and analysis results ... -
Comparative study of the essential oils of Heracleum sphondylium ssp. ternatum obtained by micro- and hydro-distillation methods
Özek, Temel; Demirci, Betül; Başer, K. Hüsnü Can (2002)The volatile compounds obtained by hydro- and micro-distillation methods from crushed fruits of Heracleum sphondylium ssp. ternatum (Velen.) Brummitt were analyzed by GC/MS. Both distillation methods and analysis results ... -
A comparative study of the essential oils of wild and cultivated Satureja hortensis L.
Başer, K. Hüsnü Can; Özek, Temel; Kırımer, Neşe; Tümen, Gülendam (Allured Publ Corp, 2004)The essential oils from 20 samples of wild and cultivated collections of Satureja hortensis L. were investigated by GC and GC/MS. The oils from cultivated forms contained carvacrol (42-63%) as the major constituent. Thymol ... -
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 microwave-assisted hydrodistillation and hydrodistillation methods for the analysis of volatile secondary metabolites
Koşar, Müberra; Özek, Temel; Göğer, Fatih; Kürkçüoğlu, Mine; Başer, K. Hüsnü Can (Taylor & Francis Inc, 2005)Microwave-assisted hydrodistillation (MWHD) and hydrodistillation (HD) were carried out for the analysis of volatile components in Whole and ground fruits of Anethum graveolens L. (dill seed) and Coriandrum sativum L. ... -
Comparison of microwave-assisted hydrodistillation and hydrodistillation methods for the fruit essential oils of Foeniculum vulgare
Koşar, Müberra; Özek, Temel; Kürkçüoğlu, Mine; Başer, K. Hüsnü Can (Allured Publ Corp, 2007)Microwave-assisted hydrodistillation (MWHD) and hydrodistillation (HD) were carried out for the analysis of volatile components in whole and ground fruits of Foeniculum vulgare Miller (fennel). Fruits were distilled using ... -
Comparison of the essential oils of Origanum majorana L. and Origanum x majoricum Cambess.
Tabanca, Nurhayat; Özek, Temel; Başer, K. Hüsnü Can; Tümen, Gülendam (Allured Publ Corp, 2004)Origanum majorana L. (Lamiaceae) has two chemtypes in Turkey. The type growing in the southwestern part of the Mediterranean region is characterized by rich oil yield and high carvacrol content. This type known as 'beyaz ... -
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 ...