Browsing by Author "Karaoğlu, S.A."
Now showing items 1-11 of 11
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Altitude variation in the composition of essential oils, fatty acid methyl esters, and antimicrobial activities of two subspecies of primula vulgaris grown in Turkey
Yayli, N.; Tosun, G.; Yayli, B.; Gündoğan, Z.; Coşkunçelebi, K.; Karaoğlu, S.A. (Natural Product Incorporation, 2016)In this study, the changes caused by variation of altitude to the essential oils (EOs), fatty acid methyl esters (FAMEs), and antimicrobial activities of Primula vulgaris Huds. subsp. vulgaris (Pvv) and P. vulgaris Huds. ... -
Antimicrobial activity and chemical composition of the essential oils of mosses (Hylocomium splendens (Hedw.) Schimp. and Leucodon sciuroides (Hedw.) Schwägr.) growing in Turkey
Cansu, T.B.; Yayli, B.; Özdemir, T.; Batan, N.; Karaoğlu, S.A.; Yayli, N. (0-Belirlenecek, 2013)In the present work, the volatiles of mosses [Hylocomium splendens (Hedw.) Schimp. (Hylocomiaceae) and Leucodon sciuroides (Hedw.) Schwägr. (Leucodontaceae)] have been investigated by GC-FID and GC/MS. Fifty-eight compounds ... -
Chemical composition and antimicrobial activity of the essential oils from the aerial parts of Astragalus hamzaoglui extracted by hydrodistillation and microwave distillation
Iskender, N.Y.; Kahriman, N.; Tosun, G.; Terzioğlu, S.; Karaoğlu, S.A.; Yayli, N. (0-Belirlenecek, 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
Kahriman, N.; Tosun, G.; Terzioğlu, S.; Karaoğlu, S.A.; Yayli, N. (0-Belirlenecek, 2011)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, ... -
Chemical constituents and antimicrobial activity of the essential oil from vicia dadianorum extracted by hydro and microwave distillations
Kahriman, N.; Yayli, B.; Yücel, M.; Karaoğlu, S.A.; Yayli, N. (0-Belirlenecek, 2012)The aim of this research was to investigate the influence of extraction methods on yield and chemical composition of the essential oil of Vicia dadianorum Somm. & Lev. The volatiles of V. dadianorum have been isolated by ... -
Photochemistry of nitro-substituted (E)-2-azachalcones with theoretical calculations and biological activities
Yayli, N.; Üçüncü, O.; Yaşar, A.; Yayli, N.; Burnaz, N.A.; Karaoğlu, S.A.; Küçük, M. (0-Belirlenecek, 2009)Four new stereoselective dimerization products (4a-c, 5) of m- and p-nitro-substituted (E)-2-azachalcones (2 and 3) were synthesized and tested for antimicrobial and antioxidant activities. Compounds 1-3 showed very good ... -
Rapid and efficient microwave-assisted synthesis of some new triazol-3-one derivatives
Menteşe, E.; Özil, M.; Karaoğlu, S.A.; Kahveci, B. (0-Belirlenecek, 2013)A growing body of literature has shown the effectiveness of using microwaves in chemical reactions. The aim of this study is to demonstrate a rapid and highly efficient synthesis of some new triazol-3-ones via microwave ... -
Reduction, Mannich reaction, and antimicrobial activity evaluation of some new 1,2,4-triazol-3-one derivatives
Fandakli, S.; Başoğlu, S.; Bektaş, H.; Yolal, M.; Demirbaş, A.; Karaoğlu, S.A. (0-Belirlenecek, 2012)Ethyl[4-arylmethyleneamino-3-(4-metylphenyl)-5-oxo-4,5-dihydro-1H -1,2,4-triazole-1-yl]acetates (3a-e and 10a-d) were obtained starting from 4-amino-2,4-dihydro-3H -1,2,4-triazol-3-ones (1 and 9) in 2 steps. The treatment ... -
Screening of intestinal parasites of children in special day nurseries in the city of Rize [Rize şehrinde özel kreşlerdeki çocuklarda bağirsak parazitlerinin taranmasi.]
Ozgümüş, O.B.; Karaoğlu, S.A. (0-Belirlenecek, 2007)In this study, the carriage of intestinal parasites was investigated in a total of 73 children (35 girls, 38 boys) in the 1-6 age-group in two special day nurseries in the city of Rize. Stool samples and cellophane tape ... -
Synthesis and antimicrobial activities of some new biheterocyclic compounds containing 1, 2, 4-triazol-3-one and 1, 3, 4-thiadiazole moieties
Bekta?, H.; Demirba?, A.; Demirba?, N.; Bayrak, H.; Karaoğlu, S.A. (0-Belirlenecek, 2010)2-(4-Amino-3-(4-chlorophenyl)-5-oxo-4, 5-dihydro-1 H-1, 2, 4-triazol-1-yl)-N'-[(2, 6 dihalogenophenyl)-methylene]acetohydrazides (3a, b) was obtained via the formation of 2-(4-amino-3-(4-chlorophenyl)-5-oxo-4, 5-dihydro-1 ... -
Synthesis of methyl (E)-2?,4?-thiazachalcones and their N-alkyl derivatives, photochemistry with theoretical calculations and antimicrobial activities
Usta, A.; Yaşar, A.; Yayli, N.; Karaoğlu, S.A.; Yayli, N. (0-Belirlenecek, 2009)A series of 9 new (E) -thiazachalcones (1-3), and their N -alkyl substituted derivatives (4-6), and stereoselective dimerization products (7-9) were synthesized, then tested for antimicrobial activity against all test ...
