Yazar "Gören, Ahmet C." için listeleme
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Analysis of the essential oil composition of Sideritis albiflora using direct thermal desorption and headspace GC-MS techniques
The main constituents of Sideritis albiflora were found to be trans-caryophyllene, α-pinene, β-pinene, γ-cadinene, pulegone, and caryophyllene oxide by both thermal desorption GC/MS and headspace GC/MS techniques. -
Analysis of the essential oil composition of Sideritis albiflora using direct thermal desorption and headspace GC-MS techniques
Topçu, Gülaçtı; Barla, Aslı; Gören, Ahmet C.; Bilsel, Gökhan; Bilsel, Mine; Tümen, Gülendam (Scientific Technical Research Council Turkey-Tubitak, 2005)The main constituents of Sideritis albiflora were found to be trans-caryophyllene, alpha-pinene, beta-pinene, gamma-cadinene, pulegone, and caryophyllene oxide by both thermal desorption GC/MS and headspace GC/MS techniques. -
Bioactive Turkish plant extracts and their constituents
Tümen, Gülendam; Kılıç, Turgut; Gören, Ahmet C.; Barla, Ash; Topçu, Gülaçtı; Türkmen, Zeynep; Kingston, David G. I. (Springer, 2009)Over 200 plant extracts were prepared from different family plants of rich flora of Turkey, in a frame of international collaborative project "Bioactive Turkish Plant Constituents". The plants were chosen randomly and/or ... -
Chemical profile of the Anatolian Sideritis species with bioactivity studies
Çarıkçı, Sema; Kılıç, Turgut; Gören, Ahmet C.; Dirmenci, Tuncay; Toraman, Gülbahar Özge Alim; Topçu, Gülaçtı (Taylor & Francis Ltd, 2023)Context: The genus Sideritis L. (Lamiaceae) is represented by 46 species in Turkey with an 79% endemism ratio, 42 of 46 belonging to the section Empodoclia. Objective: In this review article, Sideritis species growing ... -
Chemotaxonomic evaluation of species of Turkish salvia: Fatty acid composition of seed oils. II.
Kılıç, Turgut; Dirmenci, Tuncay; Gören, Ahmet C. (Acg Publications, 2007)Fatty acids composition of seed oil of Salvia viridis, S. hydrangea, S. blepharochleana, S. chianantha, S. staminea, S. hypergeia,, S. cilicica, S. caespitosa, S. sclarea, S. cadmica, S. microstegia, S. pachystachys and ... -
Chemotaxonomic evaluation of Turkish species of Salvia: Fatty acid compositions of seed oils
Gören, Ahmet C.; Kılıç, Turgut; Dirmenci, Tuncay; Bilsel, Gökhan (Pergamon-Elsevier Science Ltd, 2006)Fatty acid composition of nine species of Salvia, naturally growing in Turkey was determined: Salvia syriaca, Salvia potentilli-folia, Salvia candidissima ssp. occidentalis, Salvia macrochlamys, Salvia poculata, Salvia ... -
Diterpenes from Sideritis argyrea
Topçu, Gülaçtı; Gören, Ahmet C.; Kılıç, Turgut; Yıldız, Yaşar Kemal; Tümen, Gülendam (Elsevier Science Bv, 2001)The known ent-kaurene diterpenes 1-9 and a new ent-labdane, ent-6 beta ,8 alpha -dihydroxyl-abda-13(16),14-diene (10), were isolated from the whole plant of Sideritis argyrea. Their structures were elucidated based on one- ... -
Diterpenes from Sideritis sipylea and S-dichotoma
Topçu, Gülaçtı; Gören, Ahmet C.; Kılıç, Turgut; Yıldız, Yaşar; Tümen, Gülendam (Scientific Technical Research Council Turkey-Tubitak, 2002)Two Sideritis species afforded eleven kaurene and one beyerene diterpenes. Structures of the compounds from Sidcritis sipylca were elucidated as linearol (1), 7-epicandicandiol (2), sideridiol (3), siderol (4), isolinearol ... -
Diterpenes from Sideritis trojana
Topçu, Gülaçtı; Gören, Ahmet C.; Kılıç, Turgut; Yıldız, Yaşar; Tümen, Gülendam (Taylor & Francis Ltd, 2002)Six known ent-kaurene, a new ent-kaurane and a new pimarane diterpenes were isolated from Sideritis trojana. The structures of new compounds were determined as ent-7alpha-15beta,16beta-epoxykaurane (1), and ent-2alpha-hy ... -
Essential oil composition of twenty-two Stachys species (Mountain tea) and their biological activities
Gören, Ahmet C.; Piozzi, Franco; Akçiçek, Ekrem; Kılıç,Turgut; Çarıkçı, Sema; Mozioğlu, Erkan; Setzer, William N. (Elsevier Science Bv, 2011)The essential oils from twenty-two different Stachys species were obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). Thirty-nine compounds, which accounted for 70.5-97.8% of the ... -
Fatty acid composition of Heliotropium species (Boraginaceae): A first chemical report on the new species H. thermophilum
Gören, Ahmet C.; Tümen, Gülendam; Çelik, Ali; Çıkrıkçı, Simay (Natural Products Inc, 2008)Fatty acid compositions of the seed oils of H. thermophilum Kit Tan, A. Celik & Y. Gemici, sp. nova, H. europaeum L., and IT hirsutissimum L. (Boraginaceae) were analyzed by GC/MS. The main fatty acid methyl esters were ... -
Fatty acid composition of seeds of Satureja thymbra and S. cuneifolia
Gören, Ahmet C.; Bilsel, Gökhan; Altun, Mehmet; Satil, Fatih; Dirmenci, Tuncay (Verlag Z Naturforsch, 2003)The chemical composition of fatty acid methyl esters (FAMEs) from seeds of S. thymbra and S. cuneifolia were analyzed by GC/MS. 7 FAMEs were identified from the seeds of S thymbra mainly as 9-octadecenoic acid methyl ester ... -
Fatty acid composition of seeds of some species of Nepeta L.
Kılıç, Turgut; Dirmenci, Tuncay; Gören, Ahmet C. (Taylor & Francis Ltd, 2007)The fatty acid compositions of Nepeta viscida, N. cilicica, N. crinita, N. nuda ssp. glandulifera and N. aristata were analyzed by GC/MS. The main free fatty acids were found as linolenic acid (49.8 - 58.5%), linoleic acid ... -
Metabolic profile and biological activity of sideritis brevibracteata p. h. davis endemic to Turkey
Sağır, Züleyha Özer; Çarıkçı, Sema; Kılıç, Turgut; Gören, Ahmet C. (Taylor & Francis Ltd, 2017)Essential oil and phenolic compositions of Sideritis brevibracteata P.H. Davis, which is an endemic species in Turkey and commonly used as a herbal tea for some diseases, were determined by GC-MS and Liquid chromatography-mass ... -
Quantification of main secondary metabolites of Satureja icarica P.H. Davis (Lamiaceae) by LC-HRMS and evaluation of antioxidant capacities
Kınoğlu, Betül Kiraz; Dirmenci, Tuncay; Alwasel, Saleh H.; Gülçin, İlhami; Gören, Ahmet C. (ACG Publications, 2023)In this study, we determined antioxidant activity of Satureja icarica (Lamiaceae) which is used as a spice by the local population against 1,1-diphenyl-2-picryl-hydrazyl (DPPH·), N,N-dimethyl-p-phenylenediamine radicals ... -
Screening of Chemical Composition, Antioxidant and Anticholinesterase Activity of Section Brevifilamentum of Origanum (L.) Species
Yılmaz, Hasibe; Çarıkçı, Sema; Kılıç, Turgut; Dirmenci, Tuncay; Arabacı, Turan; Gören, Ahmet C. (2017)Six Origanum species, Origanum acutidens (Hand. -Mazz.) Ietsw. (OA), Origanum brevidens (Bornm.) Dinsm. (OB), Origanum haussknechtii Boiss. (OC), Origanum husnucan-baseri H.Duman, Aytaç A.Duran (OHB), Origanum ... -
Toxicity of acetone extract of sideritis trojana and 7-epicandicandiol, 7-epic andicandiol diacetate and 18-acetylsideroxol against stored pests acanthoscelides obtectus (say), sitophilus granarius (l.) and ephestia kuehniella (zell.)
Aslan, İrfan; Kılıç, Turgut; Gören, Ahmet C.; Topçu, Gülaçtı (Elsevier Science Bv, 2006)Acetone extract of Sideritis trojana and ent-kaurene diterpenoids 7-epicandicandiol, and 18-acetylsideroxol showed toxicity against Acanthoscelides obtectus and Sitophilus granarius while 7-epicandicandiol diacetate showed ... -
X-ray analsysis of sideroxol from Sideritis leptoclada
Kılıç, Turgut; Topçu, Gülaçtı; Gören, Ahmet C.; Ay, Mehmet; Bodige, Satish; Watson, Winsor H. (Springer, 2005)Sideroxol (1), a kaurane diterpene which has the ent-7 alpha,18-dihydroxy-15 beta,16 beta-epoxykaurane structure (MW = 320.47, C20H32O3) was obtained from the acetone extract of Sideritis leptoclada plant as well as from ...
