Makale Koleksiyonu by Institution Author "Demirci, Betül"
Now showing items 21-40 of 215
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Antiprotozoal Effect of Artemisia indica Extracts and Essential Oil
Taşdemir, Deniz; Tierney, Michelle; Sen, Rupashree; Bergonzi, Maria Camilla; Demirci, Betül; Bilia, Anna Rita; Chatterjee, Mitali (Georg Thieme Verlag Kg, 2015)Diverse solvent extracts of Artemisia indica leaves originating from the West Bengal region (India) were assessed for the content of artemisinin and characteristic Artemisia polymethoxyflavonoids, namely eupatin (1), ... -
A bioactivity guided study on the antidiabetic activity of Juniperus oxycedrus subsp oxycedrus L. leaves
Orhan, Nilüfer; Aslan, Mustafa; Demirci, Betül; Ergün, Fatma (Elsevier Ireland LTD, 2012)Ethnopharmacological relevance: Juniperus (Cupressaceae) species are widely used as folk medicine in spreading countries. Decoction of Juniperus oxycedrus subsp. oxycedrus L leaves is used internally to lower blood glucose ... -
Bioactivity-Guided Fractionation and GC/MS Fingerprinting of Angelica sinensis and Angelica archangelica Root Components for Antifungal and Mosquito Deterrent Activity
Wedge, David E.; Klun, Jerome A.; Tabanca, Nurhayat; Demirci, Betül; Özek, Temel; Başer, K. Hüsnü Can; Zhang, Jian (American Chemical Society, 2009)Bioassay-guided fractionation of the chloroform extract from the roots of Angelica sinensis led to isolation and characterization of (Z)-ligustilide using direct-bioautography with Colletotrichum species. The structure of ... -
Bioassay-Guided Investigation of Two Monarda Essential Oils as Repellents of Yellow Fever Mosquito Aedes aegypti
Tabanca, Nurhayat; Bernier, Ulrich R.; Ali, Abbas; Wang, Mei; Demirci, Betül; Bythe, Eugene K.; Khan, Ikhlas A. (American Chemical Society, 2013)As part of an ongoing research program to identify active mosquito repellents, Monarda bradburiana Beck and Monarda fistulosa L. essential oils showed good repellent activity with minimum effective dosages (MED) of 0.055 ... -
Biological Activities of Bellis perennis Volatiles and Extracts
Kavalcıoğlu, Neslihan; Açık, Leyla; Demirci, Fatih; Demirci, Betül; Demir, Hülya; Başer, K. Hüsnü Can (Natural Products Inc, 2010)Different parts of Bellis perennis were subjected to hydrodistillation and the products were subsequently analyzed by GC and GC/MS. Aqueous and methanol extracts were prepared from the aerial parts. Antioxidant ... -
Biological Activities of Various Extracts from Salvia cassia Sam. ex Rech.f. and Chemical Composition of Its Most Active Extract
Sen Utsukarci, Burcu; Gurdal, Bahar; Bilgin, Merve; Satana, Dilek; Demirci, Betül; Tan, Nur; Mat, Afife (Acg Publications, 2019)This study was conducted on the antibacterial, antimycobacterial and antifungal activities of various extracts (petroleum ether (PE), chloroform (CHCl3) and ethanol (EtOH) extracts; infusion and decoction) and essential ... -
The biological activity and essential oil composition of 17 Agathosma (Rutaceae) species
Viljoen, Alvaro M.; Moolla, Aneesa; van Vuuren, Sandy F.; van Zyl, Robyn L.; Başer, K. Hüsnü Can; Demirci, Betül; Trinder-Smith, Terry H. (Allured Publ Corp, 2006)The essential oil composition, antimicrobial, anti-inflammatory and cytotoxic activities of 17 indigenous Agathosma species (18 samples) were investigated in order to validate their use in traditional healing. The results ... -
Biological activity and essential oil composition of two new Tanacetum chiliophyllum (Fisch & Mey.) Schultz Bip. var. chiliophyllum chemotypes from Turkey
Polatoğlu, Kaan; Demirci, Betül; Demirci, Fatih; Gören, Nezhun; Başer, K. Hüsnü Can (Elsevier, 2012)Water-distilled essential oils from aerial parts of Tanacetum chiliophyllum (Fisch. & Mey.) Schultz Bip. var. chiliophyllum, from two different localities in Turkey were analyzed by GC and GC/MS. The flower and stem oils ... -
Biotransformation of (-)-(R)-a-Phellandrene: Antimicrobial Activity of Its Major Metabolite
İşcan, Gökalp; Kırımer, Neşe; Demirci, Fatih; Demirci, Betül; Noma, Yoshiaki; Başer, K. Hüsnü Can (Wiley-V C H Verlag GMBH, 2012)Terpene derivatives converted by microbial biotransformation constitute an important resource for natural pharmaceutical, fragrance, and aroma substances. In the present study, the monoterpene a-phellandrene was biotransformed ... -
Biting Deterrence, Repellency, and Larvicidal Activity of Ruta chalepensis (Sapindales: Rutaceae) Essential Oil and Its Major Individual Constituents Against Mosquitoes
Ali, Abbas; Demirci, Betül; Kıyan, Hülya Tuba; Bernier, Ulrich R.; Tsikolia, Maia; Wedge, David E.; Tabanca, Nurhayat (Entomological Soc Amer, 2013)The essential oil from aerial parts of Ruta chalepensis L. (Sapindales: Rutaceae) was obtained by hydrodistillation, and its chemical profile was identified using gas chromatography and gas chromatography-mass spectrometry. ... -
Characterization and Biological Activity of Achillea teretifolia Willd. and A. nobilis L. subsp neilreichii (Kerner) Formanek Essential Oils
Demirci, Fatih; Demirci, Betül; Gürbüz, İlhan; Yeşilada, Erdem; Başer, K. Hüsnü Can (Tubitak Scientific & Technical Research Council Turkey, 2009)The aerial parts of the endemic Achillea teretifolia Willd. and A. nobilis L. subsp. neilreichii (Kerner) Formanek collected from Beysehir were investigated for their essential oil compositions and several biological ... -
Characterization and Biological Activity of Achillea teretifolia Willd. and A. nobilis L. subsp. neilreichii (Kerner) Formanek Essential Oils
The aerial parts of the endemic Achillea teretifolia Willd. and A. nobilis L. subsp. neilreichii (Kerner) Formanek collected from Beysehir were investigated for their essential oil compositions and several biological ... -
Characterization of Opuntia ficus-indica (L.) Mill. fruit volatiles and antibacterial evaluation
Karadağ, A. E.; Demirci, Betül; Polat, D. Ç.; Okur, Mehmet Evren (Badebio Biotechnololgy Ltd, 2018)Opuntia ficus-indica (L.) Mill. fruits known as prickly pear cactus are used in folk medicine as well as food. In the present study it was aimed to extract the volatile constituents of O. ficus-indica fruits by n-hexane. ... -
Characterization of Sideritis trojana Bornm. essential oil and its antimicrobial activity
Kırmızıbekmez, Hasan; Karaca, Nursenem; Demirci, Betül; Demirci, Fatih (Marmara University, Fac Pharmacy, 2017)The components of the essential oil obtained from the dried aerial parts of Sideritis trojana Bornm. by hydrodistillation was analyzed both by GC-FID and GC-MS, simultaneously. Overall 57 compounds were identified representing ... -
Characterization of Szovitsia callicarpa Volatile Constituents Obtained by Micro- and Hydrodistillation
Demirci, Betül; Küçükboyacı, Nurgun; Adıgüzel, Nezaket; Başer, K. Hüsnü Can; Demirci, Fatih (Natural Products Inc, 2010)The volatile constituents of Szovitsia callicarpa Fisch. & C. A. Mey. were obtained from the fruits by microdistillation, due to the limited plant material availability. Initial GC-MS analyses of the obtained material ... -
Characterization of volatile and polar compounds of jiaogulan tea [Gynostemma pentaphyllum (Thunb.) Makino] by hyphenated analytical techniques
Blythe, Eugene K.; Demirci, Betül; Göğer, Fatih; Tabanca, Nurhayat (Chemical Publishing Co., 2017)Jiaogulan [Gynostemma pentaphyllum (Thunb.) Makino] is a Chinese medicinal plant from southern Asia that has rapidly gained popularity and interest for its health-promotive and therapeutic properties. The volatile composition ... -
Characterization of volatile components in Melissa officinalis L. under in vitro conditions
Mokhtarzadeh, Sam; Demirci, Betül; Göğer, Gamze; Khawar, Khalid Mahmood; Kırımer, Neşe (Taylor & Francis Inc, 2017)Lemon balm (Melissa officinalis L.) of the Lamiaceae family is an aromatic plant and widely used for medicinal purposes. This present study aimed to determine the compounds from volatiles of the plant using in vitro induced ... -
Characterization of Volatile Compounds of Eleven Achillea Species from Turkey and Biological Activities of Essential Oil and Methanol Extract of A. hamzaoglui Arabaci & Budak
Türkmenoğlu, Fatma Pınar; Ağar, Osman Tuncay; Akaydın,, Galip; Hayran, Mutlu; Demirci, Betül (MDPI AG, 2015)According to distribution of genus Achillea, two main centers of diversity occur in S.E. Europe and S.W. Asia. Diversified essential oil compositions from Balkan Peninsula have been numerously reported. However, report on ... -
Characterization of volatile constituents of Haplopappus greenei and studies on the antifungal activity against phytopathogens
Demirci, Betül; Başer, K. Hüsnü Can; Tabanca, Nurhayat; Wedge, DE (American Chemical Society, 2006)Essential oil of Haplopappus greenei A. Gray was obtained by hydrodistillation of aerial parts, which were subsequently analyzed by gas chromatography and gas chromatography-mass spectrometry. Major components were identified ...