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Chemical composition and antimicrobial activity of the essential oils of mosses (Tortula muralis Hedw., Homalothecium lutescens (Hedw.) H. Rob., Hypnum cupressiforme Hedw., and Pohlia nutans (Hedw.) Lindb.) from Turkey
Üçüncü, Osman; Cansu, Tayyibe Beyza; Özdemlr, Turan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (TÜBİTAK, 2010)The essential oils of mosses [Tortula muralis Hedw. (Pottiaceae), Homalothecium lutescens (Hedw.) H. Rob. (Brachytheciaceae), Hypnum cupressiforme Hedw. (Hypnaceae), and Pohlia nutans (Hedw.) Lindb. (Mniaceae)] were ... -
Composition and antimicrobial activity of the essential oils from flowers of Senecio othonnae, S. racemosus, and S. nemorensis
Üçüncü, Osman; Kahriman, Nuran; Terzioğlu, Salih; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (Natural Product Incorporation, 2010)The chemical composition of the essential oils of Senecio othonnae, S. racemosus, and S. nemorensis obtained by hydrodistillation of fresh flowers were analysed by GC-FID and GC-MS. A total of seventy-six compounds were ... -
Photochemistry of nitro-substituted (E)-2-azachalcones with theoretical calculations and biological activities
Yaylı, Nurettin; Üçüncü, Osman; Yaşar, Ahmet; Yaylı, Nuran; Burnaz, Nesibe Arslan; Karaoǧlu, Şengül Alpay; Küçük, Murat (Elsevier, 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 ...