Yazar "0000-0001-8932-4535" için Meslek Yüksekokulları listeleme
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Antioxidant and anticholinesterase activities of five wild mushroom species with total bioactive contents
Tel, Gülsen; Öztürk, Mehmet; Duru, Mehmet Emin; Türkoğlu, Aziz (Taylor & Francis Ltd, 2015)Context: Recently, mushrooms are interesting natural products to be investigated due to exhibiting various bioactivities. Objective: This study determines the antioxidant and anticholinesterase activities of various extracts ... -
Antioxidant and Cholinesterase Inhibition Activities of Three Tricholoma Species with Total Phenolic and Flavonoid Contents: The Edible Mushrooms from Anatolia
Tel-Çayan, Gülsen; Apaydın, Müjde; Duru, Mehmet Emin; Öztürk, Mehmet (Springer, 2012)Tricholoma species, known as odorous mushrooms, are consumed in Anatolia as well as in the world. The antioxidant activity of extracts of Tricholoma fracticum, Tricholoma imbricatum and Tricholoma terreum was determined ... -
Antioxidant, anticholinesterase and tyrosinase inhibition activities, and fatty acids of Crocus mathewii - A forgotten endemic angiosperm of Turkey
Yıldıztekin, Fatma; Nadeem, Said; Erol, Ebru; Yıldıztekin, Mahmut; Tuna, Atilla L.; Öztürk, Mehmet (Taylor & Francis Ltd, 2016)Context We report the first ever chemical/biochemical study on Crocus mathewii Kerndorff (Iridaceae) - a Turkish endemic angiosperm. This plant has never been explored for its phytochemistry and bioactivities.Objective ... -
Application of GC, GC-MSD, ICP-MS and Spectrophotometric Methods for the Determination of Chemical Composition and In Vitro Bioactivities of Chroogomphus rutilus: The Edible Mushroom Species
Çayan, Fatih; Tel-Çayan, Gülsen; Duru, Mehmet Emin; Öztürk, Mehmet; Türkoğlu, Aziz; Harmandar, Mansur (Springer, 2014)Chemical composition of Chroogomphus rutilus, the edible mushroom species, was analyzed by using gas chromatography (GC), gas chromatography mass spectrometry (GC-MSD) and inductively coupled plasma mass spectrometry ... -
Assessment of in vitro activities and chemical profiling of Senecio hoggariensis growing in Algerian Sahara
Arab, Yasmine; Şahin, Bihter; Ceylan, Özgür; Zellagui, Amar; Ölmez Tokul, Özge; Küçükaydın, Selçuk; Tamfu, Alfred Ngenge; Gherraf, Noureddine; Öztürk, Mehmet (Society for Indonesian Biodiversity, 2022)The in vitro antioxidant, anticholinesterase, tyrosinase inhibitory, antibiofilm, and anti-quorum sensing activities of the ethyl acetate extract of Senecio hoggariensis, growing in Algerian Sahara, were studied along with ... -
Chalcones bearing nitrogen-containing heterocyclics as multi-targeted inhibitors: Design, synthesis, biological evaluation and molecular docking studies
Sıcak, Yusuf; Kekeçmuhammed, Hüseyin; Karaküçük-İyidoğan, Ayşegül; Taşkın-Tok, Tuğba; Oruç-Emre, Emine Elçin; Öztürk, Mehmet (John Wiley and Sons Ltd, 2023)In this work, a series of chalcones (1a–d, 2a–d, 3a–d, 4a–d, and 5a–d) were designed and synthesized by Claisen–Schmidt condensation. Also, their chemical structures were elucidated using UV–Vis, FT IR, 1H NMR, 13C NMR, ... -
Characterization of Turkish Astragalus honeys according to their phenolic profiles and biological activities with a chemometric approach
Küçükaydın, Selçuk; Tel-Çayan, Gülsen; Çayan, Fatih; Taş-Küçükaydın, Meltem; Eroğlu, Büşra; Duru, Mehmet Emin; Öztürk, Mehmet (Elsevier Ltd, 2023)The genus of Astragalus provides a significant source of pollen and nectar for honeybees. In this study, 37 Astragalus honey samples in 8 different regions from Turkey were investigated for the phenolic compositions and ... -
Chemical constituents and their bioactivities from truffle Hysterangium inflatum
Taş, Meltem; Küçükaydın, Selçuk; Tel Çayan, Gülsen; Duru, Mehmet Emin; Öztürk, Mehmet; Türk, Mustafa (Springer, 2021)Hysterangium inflatum is a truffle that grows naturally in the roots of Eucalyptus sp. and is distributed along the Mediterranean and Aegean coasts. Chemical investigation of the H. inflatum enabled to isolate of a new ... -
A detailed study on the chemical and biological profiles of essential oil and methanol extract of Thymus nummularius (Anzer tea): Rosmarinic acid
Ertaş, Abdülselam; Boğa, Mehmet; Yılmaz, Mustafa Abdullah; Yeşil, Yeter; Tel, Gülsen; Temel, Hamdi; Uğurlu, Pelin; Öztürk, Mehmet (Elsevier Science Bv, 2015)The aim of this study was to determine the chemical profile of Thymus nummularius by LC-MS/MS and GC/MS. Additionally, the methanol extract, essential oil and some individual main compounds of Thymus nummularius were tested ... -
Determination of Antioxidant, Anticholinesterase, Tyrosinase Inhibitory Activities and Fatty Acid Profiles of 10 Anatolian Klasea Cass. Species
Tel, Gülsen; Doğan, Bekir; Erol, Ebru; Öztürk, Mehmet; Nadeem, Said; Ullah, Zain; Duran, Ahmet; Duru, Mehmet Emin (Acg Publications, 2016)In search of new natural fatty acid sources, extract of 10 different Turkish Klasea species were studies. Fatty acids of Klasea species were studied by GC and GC-MSD. Oleic acid (4.8-45.8%), palmitic acid (15.6-51.8%), ... -
Microwave-assisted synthesis of new sulfonyl hydrazones, screening of biological activities and investigation of structure-activity relationship
Karaman, Nurcan; Oruç-Emre, Emine Elçin; Sıcak, Yusuf; Çatıkkaş, Berna; Karaküçük-İyidoğan, Ayşegül; Öztürk, Mehmet (Springer Birkhauser, 2016)Sulfonyl hydrazone scaffold and the piperidine rings have important role in medicinal chemistry. This study shows the synthesis of two novel series of sulfonyl hydrazone having piperidine derivatives by condensing benzene ... -
New piperidine-hydrazone derivatives: Synthesis, biological evaluations and molecular docking studies as AChE and BChE inhibitors
Karaman, Nurcan; Sıcak, Yusuf; Taşkın-Tok, Tuğba; Öztürk, Mehmet; Karaküçük-İyidoğan, Ayşegül; Dikmen, Miris; Oruç-Emre, Emine Elçin (Elsevier France-Editions Scientifiques Medicales Elsevier, 2016)Hydrazones and the piperidine ring containing compounds were considered as beneficial substrates in drug design. Therefore, this study was aimed at the synthesis of new benzoyl hydrazones derived from ethyl 4-oxopiperidi ... -
Non-alkaloid cholinesterase inhibitory compounds from natural sources
Tamfu, Alfred Ngenge; Küçükaydın, Selçuk; Yeskaliyeva, Balakyz; Öztürk, Mehmet; Dinica, Rodica Mihaela (MDPI, 2021)Alzheimer’s disease (AD) is a severe neurodegenerative disorder of different brain regions accompanied by distresses and affecting more than 25 million people in the world. This progressive brain deterioration affects the ... -
Phytochemical investigation, antioxidant and anticholinesterase activities of Ganoderma adspersum
Tel-Çayan, Gülsen; Öztürk, Mehmet; Duru, Mehmet Emin; Rehman, Mujeeb Ur; Adhikari, Achyut; Türkoğlu, Aziz; Choudhary, M. Iqbal (Elsevier, 2015)Ganoderma species are mostly used as therapeutic agents, nowadays. Some are consumed as tea, in coffee as well as dietary supplements even by the healthy people. Bioassay-guided isolation of Gartoderma adspersum (Schulz.) ...