Yazar "Öztürk, Mehmet" için Meslek Yüksekokulları listeleme
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Antibiofilm, antiquorum sensing and antioxidant activity of secondary metabolites from seeds of Annona senegalensis, Persoon
Tamfu, Alfred Ngenge; Ceylan, Özgür; Fru, Godloves Chi; Öztürk, Mehmet; Duru, Mehmet Emin; Shaheen, Farzana (Academic Press Ltd- Elsevier Science Ltd, 2020)The increasing resistance of bacteria to antibiotics has motivated the interest in potent natural compounds capable of disrupting bacterial cell-to-cell communication. Column chromatography of seed extract of Annona ... -
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 antimicrobial constituents from the essential oil and ethanol extract of Salvia potentillifolia
Kıvrak, İbrahim; Duru, Mehmet Emin; Öztürk, Mehmet; Mercan, Nazime; Harmandar, Mansur; Topçu, Gülaçtı (Elsevier Sci Ltd, 2009)The essential oil of Salvia potentillifolia was analysed by GC and GC-MS. Totally, 123 components were detected in both hydrodistilled and steam-distilled oils, alpha- and beta-pinenes being major compounds. The antioxidant ... -
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 ... -
Bioactivities and phenolic constituents relationship of Muğla thyme and pine honey of Turkey with the chemometric approach
Sıcak, Yusuf; Şahin Yağlıoğlu, Ayşe; Öztürk, Mehmet (Springer, 2021)The chemical ingredients of pine and thyme honey were studied, along with their medicinal activity properties. A method was validated for common honey compounds using LC-TOF/MS to analyze the ingredients. In vitro ... -
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 ... -
Design and Bioevaluation of Novel Hydrazide-Hydrazones Derived from 4-Acetyl-N-Substituted Benzenesulfonamide
Bozkurt, E; Sıcak, Yusuf; Oruç-Emre, E E; Iyidoğan, A Karaküçük; Öztürk, Mehmet (Maik Nauka/Interperiodica/Springer, 2020)In this research, a series of hydrazine-hydrazone derivatives (Ia-g), (IIa-h) were synthesized to discover new antioxidant and anticholinesterase agents. The structures of synthesized compounds were characterized by ... -
Designing heterocyclic chalcones, benzoyl/sulfonyl hydrazones: An insight into their biological activities and molecular docking study
Aktar, Bedriye Seda Kursun; Sıcak, Yusuf; Tok, Tugba Taskin; Oruc-Emre, Emine Elcin; Yaglioglu, Ayse Sahin; Iyidogan, Aysegul Karakucuk; Demirtas, Ibrahim; Öztürk, Mehmet (Elsevier, 2020)The aim of this study is to investigate the antioxidant, anticholinesterase and the antiproliferative activities of some chalcones, benzoyl and sulfonyl hydrazones. The antioxidant activity was studied by way of four ... -
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%), ... -
Heavy Metals, Trace and Major Elements in 16 Wild Mushroom Species Determined by ICP-MS
Tel Çayan, Gülsen; Ullah, Zain; Öztürk, Mehmet; Yabanlı, Murat; Aydın, Fırat; Duru, Mehmet Emin (Atomic Spectroscopy Press Ltd, 2018)Eight minerals (Na, Mg, Ca, V, Mn, Fe, Zn, Se) and eight heavy metals (Al, Cr, Ni, As, Sr, Co, Cu, Pb) were studied in 16 wild mushroom species: Agarlats blsporus, Agaricus bitorquis, Agaricus essettei, Armtllaria tabescens, ... -
Insight into isolation and characterization of compounds of Chaerophyllum bulbosum aerial part with antioxidant, anticholinesterase, anti-urease, anti-tyrosinase, and anti-diabetic activities
Molo, Zeynep; Tel Çayan, Gülsen; Deveci, Ebru; Öztürk, Mehmet; Duru, Mehmet Emin (Elsevier, 2021)Chaerophyllum species are used as a food additive with their unique aroma and in traditional treatment with beneficial health effects. In this study, various extracts of Chaerophyllum bulbosum L. aerial parts were investigated ... -
Isolation and characterization of chemical constituents from Chaerophyllum bulbosum roots and their enzyme inhibitory and antioxidant effects
Tel Çayan, Gülsen; Deveci, Ebru; Molo, Zeynep; Duru, Mehmet Emin; Öztürk, Mehmet (Walter de Gruyter GmbH, 2021)Isolation and bioactive effects of the roots of Chaerophyllum bulbosum L. were firstly investigated herein. Enzyme (acetylcholinesterase, butyrylcholinesterase, urease, α-amylase, α-glucosidase, and tyrosinase) inhibitory ... -
Isolation, structural characterization, and biological activities of galactomannans from Rhizopogon luteolus and Ganoderma adspersum mushrooms
Tel-Çayan, Gülsen; Muhammad, Akhtar; Deveci, Ebru; Duru, Mehmet Emin; Öztürk, Mehmet (Elsevier B.V., 2020)Polysaccharides are essential compounds that contribute to the biological activities of mushrooms. Two new galactomannans (Galactomannan I and II) were isolated from R. luteolus and G. adspersum. Their structures were ...