Yazar "Öztürk, Mehmet" için listeleme
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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 Biological and Chemical Investigation of Sixteen Achillea Species' Essential Oils via Chemometric Approach
Yener, İsmail; Yilmaz, Mustafa Abdullah; Ölmez, Özge Tokul; Akdeniz, Mehmet; Tekin, Fetullah; Haşimi, Nesrin; Ertaş, Abdulselam (Wiley-V C H Verlag Gmbh, 2020)Representatives of the Achillea genus are widely used as foods or nutraceuticals. Considering the increasing demand for herbal dietary supplements with health promoting effects, the objective of this research was to evaluate ... -
A Detailed Chemical and Biological Investigation of Twelve Allium Species from Eastern Anatolia with Chemometric Studies
Izol, Ebubekir; Temel, Hamdi; Yılmaz, Mustafa Abdullah; Yener, İsmail; Ölmez, Özge Tokul; Kaplaner, Erhan; Fırat, Mehmet; Hasimi, Nesrin; Öztürk, Mehmet (Wiley, 2021)Allium species are widely consumed as food all over the world. The phenolic profile of ethanol extracts of aerial parts and roots of 12 Allium species, collected from five different Eastern Anatolia regions, were studied ... -
A detailed study on chemical and biological profile of nine Euphorbia species from Turkey with chemometric approach: Remarkable cytotoxicity of E-fistulasa and promising tannic acid content of E-eriophora
Yener, İsmail; Ölmez, Özge Tokul; Ertaş, Abdulselam; Yilmaz, Mustafa Abdullah; Firat, Mehmet; Kandemir, Sevgi İrtegün; Temel, Hamdi; Öztürk, Mehmet (Elsevier Science Bv, 2018)The propose of this study is to investigate the chemical constituents of nine Euphorbia species; namely, E. aleppica, E. eriophora, E. macroclada, E. grisophylla, E. seguieriana subsp. seguieriana, E. craspedia, E. ... -
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 and comparison of metal contents in simulated body fluid medium conditions of the plant species by flame atomic absorption spectrometry (FAAS)
Ölmez Tokul, Özge; Umaz, Adil; Aydın, Fırat; Öztürk, Mehmet; Ertaş, Abdulselam; Aydın, Işıl (Marmara University, 2022)The importance of plants in folk medicine and scientific studies is increasing day by day. In this context, the plants pose a danger to human health when they are eaten by the public, consumed as herbal tea or used as ... -
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%), ... -
Development and Validation of a Novel LC–MS/MS Method for the Quantitation of 19 Fingerprint Phytochemicals in Salvia Species: A Chemometric Approach
Yılmaz, Mustafa Abdullah; Ertaş, Abdulselam; Yener, İsmail; Tokul Ölmez, Özge; Fırat, Mehmet; Temel, Hamdi; Öztürk, Mehmet; Kolak, Ufuk (Oxford Academic, 2021)Being traditionally utilized mainly as appetizers and herbal teas as well as used to ease abdominal pains, colds and gastrointestinal issues, the genus Salvia L. has gained significant consideration owing to its remarkable ... -
Effect of Sideritis leptoclada against HT-144 human malignant melanoma
Aydogmus-Ozturk, Fatma; Gunaydin, Keriman; Öztürk, Mehmet; Jahan, Humera; Duru, Mehmet E.; Choudhary, Muhammad I. (Lippincott Williams & Wilkins, 2018)Sideritis leptoclada O. Schwarz et P.H. Davis extracts were evaluated for its singlet oxygen production capacity using spectrophotometric method. The extracts producing singlet oxygen were then evaluated for cytotoxicity ... -
The Effect of Temperature on the Essential Oil Components of Salvia potentillifolia Obtained by Various Methods
Öztürk, Mehmet; Tel-Çayan, Gülsen; Duru, Mehmet Emin; Harmandar, Mansur; Topcu, Gülaçtı (Sage Publications Inc, 2009)The chemical compositions of the essential oils of Salvia potentillifolia (Lamiaceae) were analyzed by GC and GC-MS. The oils were obtained by four different methods (hydrodistillation, steam distillation, and two extraction ... -
Ent-kaurane diterpenoids isolated from Sideritis congesta
Topcu, Gulacti; Ertas, Abdulselam; Öztürk, Mehmet; Dincel, Demet; Kilic, Turgut; Halfon, Belkis (Elsevier Science Bv, 2011)A new ent-kaurane diterpenoid, together with eight known ent-kauranes, were isolated from the petroleum ether and acetone extracts of the whole plant of Sideritis congesta P. H. Davis & Hub.-Mor. and their structures were ... -
Essential Oil, Aroma, and Fatty Acid Profiles of Five Endemic Salvia Taxa from Turkey with Chemometric Analysis
Ertaş, Abdulselam; Akdeniz, Mehmet; Yener, İsmail; Öztürk, Mehmet; Tokul Ölmez, Özge; Fırat, Mehmet; Kolak, Ufuk (Wiley, 2021)The essential oil, aroma, and fatty acid compositions of Salvia cerino-pruinosa var. cerino-pruinosa, S. cerino-pruinosa var. elazigensis, S. pseudeuphratica, S. rosifolia, and S. kurdica collected in 2015, 2016, and 2017 ... -
Essential Oils Composition, Anticholinesterase and Antioxidant Activities of Pistacia atlantica Desf
Öztürk, Mehmet; Abaza, İsmail; Ferhat, Maria; Labed-Zouad, Ilhem; Nadeem, Said; Kabouche, Ahmed; Kabouche, Zahia (2017)Chemical composition and in vitro antioxidant and anticholinesterase activities of essential oils obtained from leaves and flowers of Pistacia atlantica were studied. GC/GC-MS analyses of the essential oils afforded ... -
Evaluation of Antioxidant Activity and Phenolic Composition of Opuntia ficus-indica Cladodes Collected from Moroccan Settat Region
Allai, Larbi; Karym, El Mostafa; El Amiri, Bouchra; Nasser, Boubker; Essamad, Abdelkhalid; Terzioğlu, Pınar; Öztürk, Mehmet (Iser Publications, 2017)Opuntia ficus-indica cladode growing in Settat region of Morocco was freshly consumed and traditionally used in folk medicine for health benefits by the local people. The antioxidant activity and the chemical compounds of ... -
Evaluation of fruit extracts of six Turkish Juniperus species for their antioxidant, anticholinesterase and antimicrobial activities
Öztürk, Mehmet; Tumen, Ibrahim; Uğur, Aysel; Aydogmus-Ozturk, Fatma; Topcu, Gulacti (Wiley, 2011)BACKGROUND: Juniperus L. (Cupressaceae) species are mostly spread out in the Northern Hemisphere of the world, and some of them are used as folkloric medicines. The fruits of some species are eaten. Since oxidative stress ... -
Fatty Acid Composition and Antioxidant Activity of Tricholoma Imbricatum and T. Focale
Edible mushrooms are one of the important food source because of their tastes, and having high concentration of fatty acids and the other nutrients. In this study, fatty acid composition and antioxidant properties of ... -
Fatty Acid Composition, Antioxidant, Anticholinesterase and Tyrosinase Inhibitory Activities of Four Serratula Species from Anatolia
Tel, Gulsen; Öztürk, Mehmet; Duru, Mehmet Emin; Dogan, Bekir; Harmandar, Mansur (Acg Publications, 2013)Serratula L. (Astareceae) rich in ecdysteroid, phytoecdysteroids and flavonoids some have various biological activities including antibacterial and antitumor. The fatty acid profiles of four Serratula species were investigated ... -
Fatty acid profile of four Ganoderma species collected from various host trees with chemometric approach
Tokul-Olmez, Ozge; Kaplaner, Erhan; Öztürk, Mehmet; Ullah, Zain; Duru, Mehmet Emin (Pergamon-Elsevier Science Ltd, 2018)Ganoderma species have been used in traditional medicine, particularly for cancer therapy. To evaluate the similarities and the differences between four Ganoderma species, fatty acid constituents of five Ganoderma lucidum, ... -
Fatty acids and other lipid composition of five Trifolium species with antioxidant activity
Sabudak, Temine; Öztürk, Mehmet; Goren, Ahmet C.; Kolak, Ufuk; Topcu, Gulacti (Taylor & Francis Ltd, 2009)The contents of fatty acids and other lipids of Trifolium balansae Boiss, Trifolium stellatum Lin., Trifolium nigrescens Viv. subsp. petrisavi (Clem) Holmboe, Trifolium constantinopolitanum Ser., and Trifolium resupinatum ...