Yazar "Öztürk, Mehmet" için listeleme
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GC-MS Analysis and Antimicrobial Activity of Essential Oil of Stachys cretica subsp smyrnaea
Öztürk, Mehmet; Duru, Mehmet Emin; Aydoğmuş-Öztürk, Fatma; Harmandar, Mansur; Mahlıçlı, Melda; Kolak, Ufuk; Ulubelen, Ayhan (Natural Products Inc, 2009)The essential oil from the aerial parts of Stachys cretica L. subsp. smyrnaea Rech. fil. (Lamiaceae), endemic to Turkey, was investigated by using GC and GC-MS. Thirty-four of 37 components, represented 99.7% of the total ... -
GC-MS Analysis of the Antioxidant Active Fractions of Micromeria juliana with Anticholinesterase Activity
Öztürk, Mehmet; Kolak, Ufuk; Duru, Mehmet Emin; Harmandar, Mansur (Natural Products Inc, 2009)The aerial parts of Micromeria juliana (L.) Bentham ex Reichb. were extracted with light petroleum, acetone and methanol, successively. The antioxidant activity of different concentrations of the extracts was evaluated ... -
Green synthesis of multifunctional carbon coated copper oxide nanosheets and their photocatalytic and antibacterial activities
Bibi, Hamida; Iqbal, Mudassar; Wahab, Hassan; Öztürk, Mehmet (Nature Publising Group, 2021)The studies of metal oxides in environmental remediation of chemical and biological pollutants are gaining colossal importance. Herein, we report the facile synthesis of multifunctional copper oxide nanosheets (CuO NS) ... -
Heavy metals, trace and major elements in 16 wild mushroom species determined by ICP-MS
Tel-Çayan, G.; Ullah, Z.; Öztürk, Mehmet; Yabanli, M.; Aydin, F.; Duru, M.E. (Perkin - Elmer Corp., 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: Agaricus bisporus, Agaricus bitorquts, Agaricus essettei, Armillaria tabescens, ... -
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, ... -
Hepatoprotective effects of Hertia cheirifolia butanolic extract and selenium against CCl4-induced toxicity in rats
Menakh, Mouna; Boutellaa, Saber; Mahdi, Djahida; Zellagui, Amar; Lahoue, Mesbah; Öztürk, Mehmet (Wolters Kluwer Medknow Publications, 2021)Background: Hertia cheirifolia, a traditional plant endemic to both Tunisia and Algeria, is used for the treatment of various disorders. This study investigates the antioxidant and protective effects of H. cheirifolia ... -
In vitro antioxidant, anticholinesterase and antimicrobial activity studies on three Agaricus species with fatty acid compositions and iron contents: A comparative study on the three most edible mushrooms
Öztürk, Mehmet; Duru, Mehmet Emin; Kıvrak, Şeyda; Mercan-Doğan, Nazime; Turkoğlu, Aziz; Özler, Mehmet Ali (Pergamon-Elsevier Science Ltd, 2011)The fatty acids of Agaricus essettei, Agaricus bitorquis and Agaricus bisporus were investigated by using GC and GC-MS. The dominant fatty acids were found to be linoleic (61.82-67.29%) and palmitic (12.67-14.71%) acids ... -
In vitro antioxidant, anticholinesterase, tyrosinase activity studies, and LC-MS/MS simultaneous determination of 37 bioactive compounds in Indigofera heterantha
Ullah, Zain; Ali, Saqib; Hussain, Atarad; Öztürk, Mehmet; Ertaş, Abdulselam (ELSEVIER, 2022)The flowering plant Indigofera heterantha generally known as Indigo of Himalayan, was extracted with nhexane, ethyl acetate, and methanol by using Soxhlet apparatus. The extracts were studied for their antioxidants and ... -
In vitro enzyme inhibitory properties, antioxidant activities, and phytochemical fingerprints of five Moroccan seaweeds
Grina, Fatiha; Ullah, Zain; Kaplaner, Erhan; Moujahid, Abderrahman; Eddoha, Rabiaa; Nasser, Boubker; Essamadi, Abdelkhalid; Yılmaz, Mustafa Abdullah; Ertaş, Abdulselam; Öztürk, Mehmet (Elsevier, 2020)The coastlines of Morocco have an abundant resource of diverse seaweeds but the bioactivity of many of these seaweeds is still unexplored. The aim of this study was to contribute to the evaluation of the antioxidant ... -
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 ... -
Investigation of Anticholinesterase Activity of a Series of Salvia Extracts and the Constituents of Salvia staminea
Topcu, Gulacti; Kolak, Ufuk; Öztürk, Mehmet; Boga, Mehmet; Hatipoglu, Seda Damla; Bahadori, Fatemeh; Dirmenci, Tuncay (Bentham Science Publ, 2013)In continuation of our studies on the genus Salvia fourteen alcoholic extracts of Salvia species were evaluated for their anticholinesterase activity. Among them, the most active extract at 200 mu g/mL was found to be S. ... -
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, characterization, and bioactivities of compounds from Fuscoporia torulosa mushroom
Deveci, Ebru; Tel-Cayan, Gulsen; Duru, Mehmet Emin; Öztürk, Mehmet (Wiley, 2019)Chromatographic purification of Fuscoporia torulosa extracts resulted in the isolation and characterization of a new steroid, 5 alpha,8 alpha-epidioxyergosta-6,22-dien-3 beta-il-palmitate (1) and 10 known compounds (2-11). ... -
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 ... -
Lc-ms/ms profiling of 37 fingerprint phytochemicals in oenanthe fistu-losa l. And its biological activities
Souilah, Nabila; Bendif, Hamdi; Ullah, Zain; Miara, Mohamed Djamel; Laib, Messaoud; Öztürk, Mehmet; Akkal, Salah; Medjroubi, Kamel; Mustafa, Ahmed M. (Bentham Science Publishers, 2021)Oenanthe fistulosa L. (Apiaceae) is often associated with damp soils. Its underground parts and the young leaves are mainly cooked with other vegetables. Objective: The aim of the current work was to investigate the chemical ... -
LC-MS/MS simultaneous determination of 37 bioactive compounds in Bunium crassifolium Batt. and its biological activities
Souilah, Nabila; Bendif, Hamdi; Ullah, Zain; Öztürk, Mehmet (Marmara Üniversitesi, 2021)Bunium crassifolium Batt. is an extremely rare species growing in Algeria. Its leaf or aerial part is used for flavoring and garnishing food. The aim of the current study was to determine 37 bioactive phytochemicals and ... -
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 ... -
Minerals and metals in mushroom species in Anatolia
Tel, Gülsen; Çavdar, Hamide; Deveci, Ebru; Öztürk, Mehmet; Duru, Mehmet E.; Türkoğlu, Aziz (Taylor & Francis Ltd, 2014)Mineral and metal contents of 24 wild mushroom species collected from Anatolia were analysed by inductively coupled plasma optical emission spectrometry. Eight minerals (Na, Mg, Ca, Mn, Fe, Zn, P and K) and six metals (Cr, ... -
Molecular cloning, expression and characterization of bile salt hydrolase from Lactobacillus rhamnosus E9 strain
Kaya, Yesim; Kok, M. Samil; Öztürk, Mehmet (Taylor & Francis Inc, 2017)Bile salt hydrolase (BSH) enzyme, commonly found in probiotic bacteria of gut origin, catalyzes the hydrolysis of glycine and/or taurine-conjugated bile salts allowing for colonization of the bacteria in the gut and ... -
Mushrooms: A source of exciting bioactive compounds
Öztürk, Mehmet; Tel-Çayan, G.; Muhammad, A.; Terzioğlu, P.; Duru, M.E. (Elsevier B.V., 2015)Over several centuries, natural products being major molecular structural resources have played an important role for discovery of drugs. Aspirin the antipyretic and analgesic drug, taxol the anti-cancer drug, artemisinin ...
