Yazar "Tosun, Gonca" için listeleme
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Antimicrobial activity and volatile constituents of the flower, leaf, and stem of Paeonia daurica grown in Turkey
Tosun, Gonca; Kahriman, Nuran; Güleçalbay, Canan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (TÜBİTAK, 2011)The volatile constituents of the essential oils from the flower, leaf, and stem of Paeonia daurica Andrews were analyzed by GC and GC-MS. A total of 74 compounds were identified, constituting over 95.0%, 80.8%, and 98.2% ... -
Antimicrobial, cytotoxic, antiviral wffects, and apectroscopic characterization of metabolites produced by fusarium oxysporum YP9B
Kılıç, Gözde; Tosun, Gonca; Bozdeveci, Arif; Erik, İshak; Öztürk, Elif; Reis, Rengin; Sipahi, Hande; Cora, Merve; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (ACG Publications, 2021)The goal of the work is to determine the bioactive pharmaceutical metabolites produced by the Fusarium oxysporum YP9B isolate. Ten new natural compounds were isolated from the ethyl acetate extract of the F. oxysporum YP9B ... -
Chemical composition and antimicrobial activity of essential oils from tortella inclinata var. Densa, T. Tortusa and pleurochaete squarrosa
Tosun, Gonca; Yaylı, Büşra; Özdemir, Turan; Batan, Nevzat; Yaylı, Nurettin; Karaoğlu, Şengül Alpay (Chemical Publishing Co., 2014)Although some chemical compositional data are available about the extracts of Tortella tortusa and Pleurochaete squarrosa, there is no investigation about the compositions and antimicrobial activities of the volatiles from ... -
Chemical composition and antimicrobial activity of the essential oils from the aerial parts of Astragalus hamzaoglui extracted by hydrodistillation and microwave distillation
İskender, Nagihan Yılmaz; Kahrıman, Nuran; Tosun, Gonca; Terzioğlu, Salih; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2013)The essential oils from the areal parts (flower, leaf and stem) of Astragalus hamzaoglui were isolated by hydrodistillation (HD) and a microwave distillation (MD) process. The composition of the volatiles was analysed by ... -
Chemical composition and antimicrobial activity of the essential oils from the flower, leaf, and stem of Senecio pandurifolius
The essential oils from the fresh flower, leaf, and stem of Senecio pandurifolius (Asteraceae) were isolated by hydrodistillation in a Clevenger-type apparatus, and characterized by GC-FID and GC-MS. A total of forty-five, ... -
Comparative essential oil analysis of Calendula arvensis L. extracted by hydrodistillation and microwave distillation and antimicrobial activities
Tosun, Gonca; Yaylı, Büşra; Arslan, Tayfun; Yaşar, Ahmet; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2012)The present study was to investigate the influence of the extraction methods on yield and chemical composition of the essential oil of Calendula arvensis L. The volatiles of C. arvensis have been isolated by hydrodistillation ... -
Phenylenediamine, salicylic acid, stoichiometry, formation constant, speplot, metal complexes
Tosun, Gonca; Kahriman, Nuran; Çoskunçelebi, Kamil; Genç, Hasan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2011)The present work describes the chemical composition and antimicrobial activity of the essential oil of Campanula olympica Boiss. which was isolated from the all parts of the plant by hydrodistillation and analyzed by GC-FID ... -
Synthesis and biological evaluation of a new series of 4-alkoxy-2-arylquinoline derivatives as potential antituberculosis agents
Tosun, Gonca; Arslan, Tayfun; İskefiyeli, Zeynep; Küçük, Murat; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2015)Three new series of 33 quinolone compounds, 2-(2-, 3-, and 4-fluorophenyl)-4-O-alkyl(C5−15) quinolines (7a– k, 8a–k, and 9a–k), were synthesized from 2-(2-, 3-, and 4-fluorophenyl)-2,3-dihydroquinolin-4(1H )-one (4, ... -
Volatile constituents and antimicrobial activity of the essential oils from Cladonia rangiformis Hoffm. and Cladonia furcata (Huds.) Schrad
Kahriman, Nuran; Tosun, Gonca; Yaylı, Büşra; Yazıcı, Kenan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2012)This study was designed to examine the chemical compositions and antimicrobial activities of the essential oils from Cladonia rangiformis Hoffm. and Cladonia furcata (Huds.) Schrad. The essential oils were isolated by ...