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Öğe Comparison of hydrodistillation and microdistillation methods for the analysis of fruit volatiles of Prangos pabularia Lindl., and evaluation of its antimicrobial activity(ELSEVIER, 2007) Oezek, G.; Oezek, T.; Iscan, G.; Baser, K. H. C.; Hamzaoglu, E.; Duran, A.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 spectrometry (GC/MS) methods. One hundred and twenty-eight compounds have been characterized representing 90.5% of hydrodistilled oil (HDO). In the microdistilled oil (MDO), 115 compounds constituting 93.0% of the oil were detected. alpha-Humulene (16.6% and 15.5%), bicyclogermacrene (16.1% and 7.9%), spathulenol (10.6% and 5.7%), germacrene D (5.7% and 2.9%) and alpha-pinene (4.2% and 23.9%) were found to be the major constituents of HDO and MDO, respectively. Antimicrobial activity of the oil was tested via microdilution broth technique. Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Salmonella typhimurium, Staphylococcus epidermidis, Methicillin-resistant Staphylococcus aureus, and Candida albicans were used as the test microorganisms. (c) 2007 SAAB. Published by Elsevier B.V. All rights reserved.Öğe Composition of essential oils from Salvia anatolica, a new species endemic from Turkey(SPRINGER, 2007) Ozek, G.; Ozek, T.; Baser, K. H. C.; Hamzaoglu, E.; Duran, A.The component composition of essential oils produced by steam distillation from flower heads, leaves, and stems of Salvia anatolica (Lamiaceae), a recently described new species endemic from Turkey, was studied by GC/FID and GC/MS. A total of 127 volatile components representing 96% of the oil was identified in essential oil from flower heads and leaves. It was found that the principal oil components of flower heads and leaves were alpha-pinene (10.9%), beta-pinene (6.7%), alpha-copaene (6.3%), heptacosane (6.2%), and hexadecanoic acid (5.0%). A total of 109 volatile compounds representing 87.9% of the oil was characterized in essential oil isolated from stems. The principal oil components of stems were identified as hexadecanoic acid (27.2%), tetradecanoic acid (15.2%), dodecanoic acid (5.5%), and alpha-copaene (5.0%).Öğe Contribution to Globularia phylogeny based on nuclear ribosomal spacer and two chloroplast DNA regions(PERIODICUM BIOLOGORUM, 2016) Pilepic, K. Hazler; Friscic, M.; Duran, A.; Maslo, S.; Garic, R.; Culjak, S.; Sutalo, K.Background and Purpose: Molecular approach has a major impact on phylogenetic studies of plants, considering that it gives useful information about evolutionary events and relations on all taxonomic levels. The sequence data of the nuclear ITS and of two chloroplast regions, trnL-trnF spacer and rbcL gene, obtained from thirteen Globularia L. taxa, including five Anatolian endemics, representing six sections altogether, were analyzed in order to determine the relations between the European and the Anatolian species and get a better insight into the phylogeny of several closely related Globularia taxa. Materials and Methods: Total cellular DNA was extracted from fresh or frozen leaf tissue of thirteen Globularia samples. The ITS regions of nuclear DNA and two chloroplast DNA regions were amplified and sequenced. Obtained nuclear and combined plastid data matrices were subjected to Maximum Parsimony analyses. Results and Conclusions: Molecular data that were obtained in this study indicate the existence of separate centers of diversification for the European and the Anatolian Globularia. The results provide support for relationships among the studied Anatolian endemic species and indications for a redefinition of affinities of some of the European species. The results presented herein are discussed along with available morphological, karyological, phytogeographical and molecular data.Öğe Essential oil composition of Tordylium syriacum L. (Umbelliferae) collected from different localities in Turkey(TAYLOR & FRANCIS INC, 2012) Kurkcuoglu, M.; Baser, K. H. C.; Tosun, A.; Duman, H.; Duran, A.Essential oils of Tordylium syriacum collected from different localities of Turkey were analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The fruits of T. syriacum were submitted for hydrodistillation and the essential oils were obtained in 0.1-0.7% yield. The compounds characterized represented 91.7-94.7% of the oils. The main constituent was found to be octyl hexanoate (46.2-80.5%).Öğe Karyotype of Matthiola Trojana T.Dirmenci, F.Satil and G.Tumen (Brassicaceae), endemic to Turkey(SPRINGER, 2007) Martin, E.; Duran, A.; Dirmenci, T.[Abstract not Available]Öğe Klasea yunus-emrei (Asteraceae), a new species from central Anatolia, Turkey(TAYLOR & FRANCIS LTD, 2015) Dogan, B.; Koyuncu, O.; Duran, A.; Ocak, A.A new species, Klasea yunus-emrei B. Dogan, Ocak & A. Duran (Asteraceae), is described from central Anatolia, Turkey. The species grows on calcareous soils in the Alpu district (Eskieehir province) in central Anatolia. It is morphologically similar to Klasea lasiocephala (Bornm.) Greuter & Wagenitz. Diagnostic morphological characters from closely similar taxa are discussed and arranged in a key. Ecology, conservation status and biogeography of the species are also presented. The achene surface of K. yunus-emrei and K. lasiocephala are examined by Scanning Electron Microscope. In addition, the geographical distribution of the new species and other related species are mapped.Öğe Molecular analysis of beta amyrin 11-oxidase (Cytochrome P450 88D6) among Glycyrrhiza species grown in Turkey(WILEY-BLACKWELL, 2014) Cetin, O.; Dundar, E.; Duran, A.[Abstract not Available]Öğe New chromosome counts in Hesperis L. (Brassicaceae) from Turkey(SPRINGER, 2007) Duran, A.; Martin, E.; Unal, Fatma[Abstract not Available]Öğe A Preliminary Examination of the Composition of the Seed Oil of Matthiola Anchoniifolia Hub.-Mor. Obtained by Microdistillation(Allured Publ Corp, 2006) Kirimer, N.; Özek, G.; Özek, T.; Başer, K. H. C.; Duran, A.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 constituent in the oil. Sulfur compounds responsible for the foul odor of the oil comprised 34.7%. They consisted of isopropyl isothiocyanate (16.9%), dimethyl trisulfide (8.8%), dimethyl disulfide (4.7%) and isobutyl isothiocyanate (4.3%).Öğe Research into chemistry and biological activities of Prangos Lindl. (Apiaceae) species of Turkey(GEORG THIEME VERLAG KG, 2009) Baser, K. H. C.; Demirci, B.; Ozek, G.; Duran, A.; Tabanca, N.; Wedge, D. E.[Abstract not Available]
