Works by Kolak, Ufuk

Results: 44

Simultaneous determination of seven phthalic acid esters in beverages using ultrasound and vortex-assisted dispersive liquid-liquid microextraction followed by high-performance liquid chromatography.

Published in:

Journal of Separation Science, 2014, v. 37, n. 16, p. 2111, doi. 10.1002/jssc.201400408

By:

Yılmaz, Pelin Köseoğlu;
Ertaş, Abdulselam;
Kolak, Ufuk

Publication type:

Article

A Comprehensive Study on Chemical and Biological Investigation of Thymus Brachychilus Jalas: A Rich Source of Ursolic and Oleanolic Acids.

Published in:

Analytical Letters, 2024, v. 57, n. 16, p. 2677, doi. 10.1080/00032719.2023.2300737

By:

Akdeniz, Mehmet;
Yigitkan, Serkan;
Yilmaz, Mustafa Abdullah;
Yener, Ismail;
Varhan Oral, Elif;
Firat, Mehmet;
Erdogan Orhan, Ilkay;
Kolak, Ufuk;
Ertas, Abdulselam

Publication type:

Article

Characterization of the Chemical Profile of Euphorbia Species from Turkey by Gas Chromatography-Mass Spectrometry (GC-MS), Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS), and Liquid Chromatography-Ion Trap-Time-of-Flight-Mass Spectrometry (LC-IT-TOF-MS) and Chemometric Analysis<sup>†</sup>

Published in:

Analytical Letters, 2019, v. 52, n. 7, p. 1031, doi. 10.1080/00032719.2018.1512608

By:

Yener, İsmail;
Ertaş, Abdulselam;
Yilmaz, Mustafa Abdullah;
Tokul Ölmez, Özge;
Köseoğlu Yılmaz, Pelin;
Yeşil, Yeter;
Kaplaner, Erhan;
Öztürk, Mehmet;
Temel, Hamdi;
Kolak, Ufuk;
Topçu, Gülaçtı

Publication type:

Article

Determination of Phenolic Acids in Atriplex hortensis L. by Novel Solid-Phase Extraction and High-Performance Liquid Chromatography.

Published in:

Analytical Letters, 2016, v. 49, n. 14, p. 2157, doi. 10.1080/00032719.2016.1145231

By:

Yılmaz, Pelin Köseoğlu;
Kolak, Ufuk

Publication type:

Article

In vitro biological activities and fatty acid profiles of Pistacia terebinthus fruits and Pistacia khinjuk seeds.

Published in:

Natural Product Research, 2015, v. 29, n. 5, p. 444, doi. 10.1080/14786419.2014.947492

By:

Hacıbekiroğlu, I¸ıl;
Yılmaz, Pelin Köseoğlu;
Ha¸imi, Nesrin;
Kılınç, Ersin;
Tolan, Veysel;
Kolak, Ufuk

Publication type:

Article

Essential oil compositions and anticholinesterase activities of two edible plants Tragopogon latifolius var. angustifolius and Lycopsis orientalis.

Published in:

Natural Product Research, 2014, v. 28, n. 17, p. 1405, doi. 10.1080/14786419.2014.905558

By:

Ertaş, Abdulselam;
Gören, Ahmet C.;
Boğa, Mehmet;
Yeşil, Yeter;
Kolak, Ufuk

Publication type:

Article

Isolation of fatty acids and aromatics from cell suspension cultures of Lavandula angustifolia.

Published in:

Natural Product Research, 2007, v. 21, n. 2, p. 100, doi. 10.1080/14786410500462884

By:

TopÇu, GülaÇti;
Herrmann, Gabriele;
Kolak, Ufuk;
Gören, C.;
Porzel, Andrea;
Kutchan, Toni M.

Publication type:

Article

Essential Oil, Aroma, and Fatty Acid Profiles of Five Endemic Salvia Taxa from Turkey with Chemometric Analysis.

Published in:

Chemistry & Biodiversity, 2022, v. 19, n. 1, p. 1, doi. 10.1002/cbdv.202100408

By:

Ertas, Abdulselam;
Akdeniz, Mehmet;
Yener, Ismail;
Ozturk, Mehmet;
Tokul Olmez, Ozge;
Firat, Mehmet;
Kolak, Ufuk

Publication type:

Article

Phytochemical Fingerprints and Bioactivities of Ripe Disseminules (Fruit‐Seeds) of Seventeen Gundelia (Kenger‐Kereng Dikeni) Species from Anatolia with Chemometric Approach.

Published in:

Chemistry & Biodiversity, 2021, v. 18, n. 8, p. 1, doi. 10.1002/cbdv.202100207

By:

Ertas, Abdulselam;
Firat, Mehmet;
Yener, Ismail;
Akdeniz, Mehmet;
Yigitkan, Serkan;
Bakir, Derya;
Cakir, Cansel;
Abdullah Yilmaz, Mustafa;
Ozturk, Mehmet;
Kolak, Ufuk

Publication type:

Article

Essential Oil Contents of Hypericum linarioides, H. helianthemoides, and H. lydium with Their Biological Activities: Importance of Hypericum Genus in the Cosmeceutical and Pharmaceutical Industries.

Published in:

Pharmaceutical Chemistry Journal, 2023, v. 57, n. 9, p. 1460, doi. 10.1007/s11094-023-03011-y

By:

Akdeniz, Mehmet;
Yener, Ismail;
Ertas, Abdulselam;
Dincel, Demet;
Firat, Mehmet;
Kocakaya, Safak Ozhan;
Yiğitkan, Serkan;
Türkmenoğlu, Fatma Pınar;
Aydin, Firat;
Kolak, Ufuk

Publication type:

Article

Selective in-vitro Enzymes' Inhibitory Activities of Fingerprints Compounds of Salvia Species and Molecular Docking Simulations.

Published in:

Iranian Journal of Pharmaceutical Research, 2020, v. 19, n. 2, p. 187, doi. 10.22037/ijpr.2020.112498.13801

By:

Kocakaya, Safak Ozhan;
Ertas, Abdulselam;
Yener, Ismail;
Ercan, Bahadir;
Oral, Elif Varhan;
Akdeniz, Mehmet;
Kaplaner, Erhan;
Topcu, Gulacti;
Kolak, Ufuk

Publication type:

Article

Screening antioxidant and anticholinesterase potential of Iris albicans extracts.

Published in:

Arabian Journal of Chemistry, 2015, v. 8, n. 2, p. 264, doi. 10.1016/j.arabjc.2012.04.051

By:

Hacıbekiroğlu, Işıl;
Kolak, Ufuk

Publication type:

Article

Triterpenoids and steroids isolated from Anatolian Capparis ovata and their activity on the expression of inflammatory cytokines.

Published in:

Pharmaceutical Biology, 2020, v. 58, n. 1, p. 925, doi. 10.1080/13880209.2020.1814356

By:

Gazioglu, Isil;
Semen, Sevcan;
Acar, Ozden Ozgun;
Kolak, Ufuk;
Sen, Alaattin;
Topcu, Gulacti

Publication type:

Article

Effect of roasting on antioxidant and anticholinesterase capacities of coffee.

Published in:

Journal of Food & Nutrition Research, 2014, v. 53, n. 3, p. 232

By:

KÖSEOĞLU YILMAZ, PELIN;
HACIBEKIROĞLU, IŞIL;
KOLAK, UFUK

Publication type:

Article

Phytochemical profile and some biological activities of three Centaurea species from Turkey.

Published in:

Tropical Journal of Pharmaceutical Research, 2016, v. 15, n. 9, p. 1865, doi. 10.4314/tjpr.v15i9.8

By:

Boğa, Mehmet;
Alkan, Hüseyin;
Ertaş, Abdulselam;
Oral, Elif Varhan;
Yılmaz, Mustafa A.;
Yeşil, Yeter;
Gören, Ahmet C.;
Temel, Hamdi;
Kolak, Ufuk

Publication type:

Article

Chemical Composition of The Essential Oils of Three Centaurea Species Growing Wild in Anatolia and Their Anticholinesterase Activities.

Published in:

Journal of Essential Oil-Bearing Plants, 2014, v. 17, n. 5, p. 922, doi. 10.1080/0972060X.2014.886164

By:

Ertas, Abdulselam;
Gören, Ahmet Ceyhan;
Boga, Mehmet;
Demirci, Serpil;
Kolak, Ufuk

Publication type:

Article

Method Validation for the Quantitative Analysis of Aflatoxins (B1, B2, G1, and G2) and Ochratoxin A in Processed Cereal- Based Foods by HPLC with Fluorescence Detection.

Published in:

Journal of AOAC International, 2015, v. 98, n. 4, p. 939, doi. 10.5740/jaoacint.14-211

By:

GAZIOĞLU, IŞIL;
KOLAK, UFUK

Publication type:

Article

Investigation of cytotoxic and apoptotic effects of 63 compounds obtained from Salvia species: Promising anticancer agents.

Published in:

Journal of Food Biochemistry, 2022, v. 46, n. 9, p. 1, doi. 10.1111/jfbc.14226

By:

Irtegun Kandemir, Sevgi;
Fidan, Hilal Saruhan;
Yener, Ismail;
Mete, Nuriye;
Ertas, Abdulselam;
Topcu, Gulactı;
Kolak, Ufuk

Publication type:

Article

Ultrasound- and Vortex-Assisted Dispersive Liquid-Liquid Microextraction of Parabens from Personal Care Products and Urine, Followed by High-Performance Liquid Chromatography.

Published in:

Turkish Journal of Pharmaceutical Sciences, 2023, v. 20, n. 5, p. 328, doi. 10.4274/tjps.galenos.2022.42387

By:

KÖSEOĞLU YILMAZ, Pelin;
KOLAK, Ufuk

Publication type:

Article

Chemical Profile of Malva Neglecta and Malvella Sherardiana by LCMS/ MS, GC/MS and Their Anticholinesterase, Antimicrobial and Antioxidant Properties With Aflatoxin-Contents.

Published in:

Marmara Pharmaceutical Journal, 2017, v. 21, n. 3, p. 471, doi. 10.12991/marupj.307461

By:

Haşimi, Nesrin;
Ertaş, Abdulselam;
Oral, Elif Varhan;
Alkan, Hüseyin;
Boğa, Mehmet;
Yılmaz, Mustafa Abdullah;
Yener, İsmail;
Gazioğlu, Işıl;
Özaslan, Cumali;
Akdeniz, Mehmet;
Kolak, Ufuk

Publication type:

Article

Isolation of secondary metabolites of two endemic species: Salvia rosifolia Sm. and Salvia cerino-pruinosa Rech. f. var. elazigensis (Lamiaceae).

Published in:

Journal of Food Measurement & Characterization, 2021, v. 15, n. 6, p. 4929, doi. 10.1007/s11694-021-01065-8

By:

Yaris, Esra;
Balur Adsız, Leyla;
Yener, Ismail;
Tuncay, Eyyup;
Yilmaz, Mustafa Abdullah;
Akdeniz, Mehmet;
Kaplaner, Erhan;
Firat, Mehmet;
Ertas, Abdulselam;
Kolak, Ufuk

Publication type:

Article

Method validation of 15 phytochemicals in Hypericum lysimachioides var. spathulatum by LC–MS/MS, and fatty acid, essential oil, and aroma profiles with biological activities.

Published in:

Journal of Food Measurement & Characterization, 2020, v. 14, n. 6, p. 3194, doi. 10.1007/s11694-020-00562-6

By:

Akdeniz, Mehmet;
Yilmaz, Mustafa Abdullah;
Ertas, Abdulselam;
Yener, Ismail;
Firat, Mehmet;
Aydin, Firat;
Kolak, Ufuk

Publication type:

Article

Development and Validation of a SPE–HPLC Method for Quantification of Rhein, Emodin, Chrysophanol and Physcion in Rhamnus petiolaris Boiss. & Balansa.

Published in:

Journal of Chromatographic Science, 2024, v. 62, n. 9, p. 872, doi. 10.1093/chromsci/bmad053

By:

Yılmaz, Pelin Köseoğlu;
Kolak, Ufuk

Publication type:

Article

Development and Validation of a Novel LC–MS/MS Method for the Quantitation of 19 Fingerprint Phytochemicals in Salvia Species: A Chemometric Approach.

Published in:

Journal of Chromatographic Science, 2022, v. 60, n. 8, p. 770, doi. 10.1093/chromsci/bmab125

By:

Yilmaz, Mustafa Abdullah;
Ertas, Abdulselam;
Yener, Ismail;
Olmez, Ozge Tokul;
Firat, Mehmet;
Temel, Hamdi;
Ozturk, Mehmet;
Kolak, Ufuk

Publication type:

Article

SPE-HPLC Determination of Chlorogenic and Phenolic Acids in Coffee.

Published in:

Journal of Chromatographic Science, 2017, v. 55, n. 7, p. 712, doi. 10.1093/chromsci/bmx025

By:

Yılmaz, Pelin Köseoğlu;
Kolak, Ufuk

Publication type:

Article

Chemical profile and biological activities of Veronica thymoides subsp. pseudocinerea.

Published in:

Pharmaceutical Biology, 2015, v. 53, n. 3, p. 334, doi. 10.3109/13880209.2014.919326

By:

Ertas, Abdulselam;
Boga, Mehmet;
Kizil, Murat;
Ceken, Bircan;
Goren, Ahmet Ceyhan;
Hasimi, Nesrin;
Demirci, Serpil;
Topcu, Gulacti;
Kolak, Ufuk

Publication type:

Article

Antioxidant and anticholinesterase activities of eleven edible plants.

Published in:

Pharmaceutical Biology, 2011, v. 49, n. 3, p. 290, doi. 10.3109/13880209.2010.517539

By:

Boğa, Mehmet;
Hacıbekiroğlu, Işıl;
Kolak, Ufuk

Publication type:

Article

Fatty acids and other lipid composition of five Trifolium species with antioxidant activity.

Published in:

Pharmaceutical Biology, 2009, v. 47, n. 2, p. 137, doi. 10.1080/13880200802439343

By:

Sabudak, Temine;
Ozturk, Mehmet;
Goren, Ahmet C.;
Kolak, Ufuk;
Topcu, Gulactı

Publication type:

Article

A GC–MS method validation for quantitative investigation of some chemical markers in Salvia hypargeia Fisch. & C.A. Mey. of Turkey: Enzyme inhibitory potential of ferruginol.

Published in:

Journal of Food Biochemistry, 2020, v. 44, n. 9, p. 1, doi. 10.1111/jfbc.13350

By:

Bakir, Derya;
Akdeniz, Mehmet;
Ertas, Abdulselam;
Yilmaz, Mustafa A.;
Yener, Ismail;
Firat, Mehmet;
Kolak, Ufuk

Publication type:

Article

Phytochemical and biological investigations on two Nepeta species: Nepeta heliotropifolia and N. congesta subsp. cryptantha.

Published in:

Journal of Food Biochemistry, 2020, v. 44, n. 2, p. N.PAG, doi. 10.1111/jfbc.13124

By:

Akdeniz, Mehmet;
Ertas, Abdulselam;
Yener, Ismail;
Firat, Mehmet;
Kolak, Ufuk

Publication type:

Article

Antioxidant and anticholinesterase constituents from the petroleum ether and chloroform extracts of Iris suaveolens.

Published in:

Phytotherapy Research, 2011, v. 25, n. 4, p. 522, doi. 10.1002/ptr.3299

By:

Hacıbekiroğlu, Işıl;
Kolak, Ufuk

Publication type:

Article

Determination of essential oil and biological activities of Hypericum ternatum Poulter and H. scabrum L. species collected from different localities: is H. scabrum an alternative to multifunctional species ST JOHN'S WORT (H. perforatum)?

Published in:

Turkish Journal of Chemistry, 2022, v. 46, n. 6, p. 1956, doi. 10.55730/1300-0527.3494

By:

AKDENİZ, Mehmet;
YENER, İsmail;
İRTEGÜN KANDEMİR, Sevgi;
ÖZHAN KOCAKAYA, Şafak;
FIRAT, Mehmet;
YİĞİTKAN, Serkan;
HAŞİMİ, Nesrin;
ERTAŞ, Abdulselam;
KOLAK, Ufuk

Publication type:

Article

Antioxidant, anticholinesterase, and antimicrobial activities and fatty acid constituents of Achillea cappadocica Hausskn. et Bornm.

Published in:

Turkish Journal of Chemistry, 2014, v. 38, n. 4, p. 592, doi. 10.3906/kim-1305-29

By:

ERTAŞ, Abdulselam;
BOĞA, Mehmet;
HAŞİMİ, Nesrin;
YEŞİL, Yeter;
GÖREN, Ahmet Ceyhan;
TOPÇU, Gülaçtı;
KOLAK, Ufuk

Publication type:

Article

Terpenoids, essential oil composition, fatty acid profile, and biological activities of Anatolian Salvia fruticosa Mill.

Published in:

Turkish Journal of Chemistry, 2013, v. 37, n. 4, p. 619, doi. 10.3906/kim-1303-25

By:

TOPÇU, Gülaçtı;
ÖZTÜRK, Mehmet;
KUŞMAN, Tuba;
Barla DemİRkoz, Ayşe Aslı;
KOLAK, Ufuk;
ULUBELEN, Ayhan

Publication type:

Article

Constituents of Plantago major subsp. intermedia with antioxidant and anticholinesterase capacities.

Published in:

Turkish Journal of Chemistry, 2011, v. 35, n. 4, p. 637, doi. 10.3906/kim-1102-990

By:

KOLAK, Ufuk;
BOĞA, Mehmet;
URUŞAK, Emine AKALIN;
ULUBELEN, Ayhan

Publication type:

Article

Antioxidant and anticholinesterase constituents of Salvia poculata.

Published in:

Turkish Journal of Chemistry, 2009, v. 33, n. 6, p. 813, doi. 10.3906/kim-0902-15

By:

Kolak, Ufuk;
Hacibekıroğlu, Işıl;
Öztürk, Mehmet;
Özgökçe, Fevzi;
Topçu, Gülaçti;
Ulubelen, Ayhan

Publication type:

Article

New Diterpenoids from the Aerial Parts of Salvia pilifera.

Published in:

Turkish Journal of Chemistry, 2007, v. 31, n. 3, p. 363

By:

Kolak, Ufuk

Publication type:

Article

Terpenoidsand Steroids from the Roots of Salvia blephaochlaena.

Published in:

Turkish Journal of Chemistry, 2005, v. 29, n. 2, p. 177

By:

Kolak, Ufuk;
Topçu, Güaçti;
Birteksöz, Seher;
Ötük, Gülten;
Ulubelen, Ayhan

Publication type:

Article

Bioguided Isolation of Secondary Metabolites from Salvia cerino-pruinosa Rech. f. var. cerino-pruinosa.

Published in:

Records of Natural Products, 2021, v. 15, n. 6, p. 585, doi. 10.25135/rnp.248.21.01.1933

By:

Ertas, Abdulselam;
Cakirca, Hatice;
Yener, Ismail;
Akdeniz, Mehmet;
Firat, Mehmet;
Topcu, Gulacti;
Kolak, Ufuk

Publication type:

Article

Biological and Chemical Comparison of Natural and Cultivated Samples of Satureja macrantha C.A.Mey.

Published in:

Records of Natural Products, 2021, v. 15, n. 6, p. 568, doi. 10.25135/rnp.237.21.02.1957

By:

Akdeniz, Mehmet;
Yener, Ismail;
Ertas, Abdulselam;
Firat, Mehmet;
Resitoglu, Baris;
Hasimi, Nesrin;
Kandemir, Sevgi Irtegun;
Yilmaz, Mustafa Abdullah;
Demirkoz, Asli Barla;
Kolak, Ufuk;
Oksuz, Sevil

Publication type:

Article

Evaluation of Antioxidant, Cholinesterase Inhibitory and Antimicrobial Properties of Mentha longifolia subsp. noeana and Its Secondary Metabolites.

Published in:

Records of Natural Products, 2015, v. 9, n. 1, p. 105

By:

Ertaş, Abdulselam;
Gören, Ahmet C.;
Haşimi, Nesrin;
Tolan, Veysel;
Kolak, Ufuk

Publication type:

Article

Screening Some Plants for their Antiproliferative Compounds.

Published in:

Records of Natural Products, 2012, v. 6, n. 3, p. 194

By:

Ulubelen, Ayhan;
Kolak, Ufuk;
Boğa, Mehmet

Publication type:

Article

Phytochemical Investigation of Leontice leontopetalum L. subsp. ewersmannii with Antioxidant and Anticholinesterase Activities.

Published in:

Records of Natural Products, 2011, v. 5, n. 4, p. 309

By:

Kolak, Ufuk;
Hacıbekiroğlu, Isıl;
Boğa, Mehmet;
Özgökçe, Fevzi;
Ünal, Murat;
Choudhary, M. Iqbal;
Ulubelen, Ayhan

Publication type:

Article

Antioxidant, Anticholinesterase and Antibacterial Activities of Jurinea consanguinea DC.

Published in:

Records of Natural Products, 2011, v. 5, n. 1, p. 43

By:

Öztürk, Hülya;
Kolak, Ufuk;
Meric, Ciler

Publication type:

Article