Kurum Yazarı "Kıvrak, İbrahim" Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed İçin Listeleme
-
Analytical Methods Applied to Assess Chemical Composition, Nutritional Value and In Vitro Bioactivities of Terfezia olbiensis and Terfezia claveryi from Turkey
Kıvrak, İbrahim (Springer, 2015)In this study, nutritional value, free amino acids, phenolic and sugar compounds, mineral and heavy metal contents of truffles, Terfezia olbiensis, and Terfezia claveryi from Turkey were chemically characterized using ... -
The antibacterial effect of bee venom on subclinical mastitis agents: an alternative for local treatment
Güven Gökmen, Tülin; Yazgan, Hatice; Sevin, Sedat; Turut, Nevin; Karahan, Şifa; Eşki, Funda; Kıvrak, İbrahim (Taylor and Francis Ltd., 2023)Subclinical mastitis is an important problem in terms of the dairy economy all over the world and due to the increasing antibiotic resistance day by day, there is a great need for new antibiotic alternatives and natural ... -
Antioxidant and antimicrobial activities of Morchella conica Pers.
Türkoğlu, A.; Kıvrak, İbrahim; Mercan, N.; Duru, Mehmet Emin; Gezer, K.; Türkoğlu, H. (Academic Journals, 2006)Antioxidant capacity and antimicrobial activities of Morchella conica Pers. extracts obtained with ethanol were investigated in this study. Four complementary test systems; namely DPPH free radical scavenging, -carotene/linoleic ... -
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 ... -
Assessment of Bioactive Compounds and Antioxidant Activity of Turkey Tail Medicinal Mushroom Trametes versicolor (Agaricomycetes)
Kıvrak, İbrahim; Kıvrak, Şeyda; Karababa, Ersan (Begell House Inc, 2020)Trametes versicolor is important for its medicinal rather than nutritional value. It has a variety of pharmacological activities. The purpose of this study was to elucidate the bioactive properties of the wild medicinal ... -
Can Riboflavin Penetrate Stroma Without Disrupting Integrity of Corneal Epithelium in Rabbits? Iontophoresis and Ultraperformance Liquid Chromatography With Electrospray Ionization Tandem Mass Spectrometry
Novruzlu, Şahin; Özel Türkcü, Ummuhani; Kıvrak, İbrahim; Kıvrak, Şeyda; Yüksel, Erdem; Deniz, Nuriye Gokcen; Bilgihan, Kamil (Lippincott Williams & Wilkins, 2015)Purpose:To examine riboflavin concentrations in corneas and aqueous humor from rabbits with standard and transepithelial methods and iontophoresis without disrupting the integrity of the corneal epithelium before corneal ... -
Characterization of Turkish honeys regarding of physicochemical properties, and their adulteration analysis
Kıvrak, Şeyda; Kıvrak, İbrahim; Karababa, Ersan (Soc Brasileira Ciencia Tecnologia Alimentos, 2017)This work was conducted to evaluate the quality of 54 honey samples from eighteen different origins from Turkey. Physicochemical properties were examined according to AOAC methods, total phenolic and flavonoid contents by ... -
Chemical composition and antibacterial activity of bee venom against multi-drug resistant pathogens
Güven Gökmen, Tülin; Yazgan, Hatice; Özdemir, Yıldız; Sevin, Sedat; Turut, Nevin; Kıvrak, İbrahim (AOSIS, 2023)Bee venom with an antimicrobial effect is a powerful natural product. One of the most important areas where new antimicrobials are needed is in the prevention and control of multi-drug resistant pathogens. Today, antibacterial ... -
Comparative study of antibiofilm, cytotoxic activity and chemical composition of Algerian propolis
Daikh, Amina; Segueni, Narimane; Dogan, Nazime Mercan; Arslan, Sevki; Mutlu, Dogukan; Kıvrak, İbrahim; Rhouati, Salah (Taylor & Francis Ltd, 2020)Antimicrobial agents are one of the strategies for inhibition of biofilm formation. But, most antimicrobials are not often effective in controlling of biofilm formation. Therefore, finding of new materials that have biofilm ... -
Determination of the Effects of Bee Venom on Triple Negative Breast Cancer Cells in Vitro
Sevin, Sedat; Deveci Ozkan, Asuman; Tutun, Hidayet; Kıvrak, İbrahim; Turna, Özge; Güney Eskiler, Gamze (John Wiley and Sons Inc, 2023)Honeybees provide multiple products such as bee venom (BV) which are used for various nutritional and medicinal purposes. BV has received great attention due to its wide range of bioactive components with potential anti-cancer ... -
Development of a rapid method for the determination of antibiotic residues in honey using UPLC-ESI-MS/MS
Kıvrak, İbrahim; Kıvrak, Şeyda; Harmandar, Mansur (Soc Brasileira Ciencia Tecnologia Alimentos, 2016)An accurate, reliable and fast multianalyte/multiclass ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for the simultaneous analysis of 23 pharmaceuticals, ... -
THE EFFECTS SOME PLANT (Coridothymus Capitatus L.) RCHB. F. AND Mentha Pulegium L.) EXTRACTS ON THE CONTROL OF AN INVASIVE WEED (Oxalis Pes-Caprae L.)
Özderin, Sevgin; Kaçan, Koray; Kıvrak, İbrahim (PARLAR SCIENTIFIC PUBLICATIONS, 2022)This study was carried out to determine the effect of some plant extracts in the control of weed (Oxalis pes-caprae L.) which is an invasive weed species. The phenolic components of Coridotavmus capitatus (L.) Rchb. F. and ... -
Free-radical scavenging capacity and antimicrobial activity of wild edible mushroom from Turkey
Gezer, K.; Duru, Mehmet Emin; Kıvrak, İbrahim; Türkoğlu, A.; Mercan, N.; Türkoğlu, H.; Gülcan, S. (Academic Journals, 2006)Antioxidant capacity and antimicrobial activities of Ramaria flava (Schaeff) Quel. (RF) extracts obtained with ethanol were investigated in this study. Four complementary test systems; namely DPPH free radical scavenging, ... -
NMR metabolomics analysis of Escherichia coli cells treated with Turkish propolis water extract reveals nucleic acid metabolism as the major target
Elgin, E Sonay; Çatav, Ş Serter; Babayeva, Anara; Kim, Hakbeom; Kim, Hakbeom; Dibek, Esra; Çöl, Bekir; Chae, Young Kee; Kıvrak, İbrahim (NLM (Medline), 2023)AIMS: Propolis is a resinous bee product containing several hundred biologically active compounds. Although the antibacterial activity of propolis has been demonstrated in many in vitro studies, less is known about its ... -
NUTRITIONAL VALUE, PHENOLIC, VITAMIN AND MINERAL CONTENTS OF A FERMENTED BEVERAGE FROM GRAPES OF 'MERLOT' AND 'CABERNET SAUVIGNON'
Kıvrak, Şeyda; Kıvrak, İbrahim; Karababa, Erşan (Hoehere Bundeslehranstalt Und Bundesamt Fuer Wein- Und Obstbau, 2016)In this study, Hardaliye, the non-alcoholic fermented beverage from 'Merlot' and 'Cabernet Sauvignon grapes, was successfully examined for its nutritional value, phenolic compounds, water-soluble vitamin and mineral contents, ... -
The positive effect of black seed (Nigella sativa L.) essential oil on thyroid hormones in rats with hypothyroidism and hyperthyroidism
Avcı, Gülcan; Ulutaş, Elmas; Özdemir, Vural; Kıvrak, İbrahim; Bülbül, Aziz (Wiley, 2021)In our study, the effect of essential oil obtained from Nigella sativa L. (NSE) on thyroid hormones and antioxidant balance in hypothyroidism (HT) and hyperthyroidism (HP) models induced by propylthiouracil(PTU) and ... -
Serum indoleamine 2,3 dioxygenase and tryptophan and kynurenine ratio using the UPLC-MS/MS method, in patients undergoing peritoneal dialysis, hemodialysis, and kidney transplantation
Yılmaz, Nigar; Üstündağ, Yasemin; Kıvrak, Şeyda; Kahvecioğlu, Serdar; Çelik, Hüseyin; Kıvrak, İbrahim; Huysal, Kağan (Taylor & Francis Ltd, 2016)Background: The level and activity of indoleamine 2,3-dioxygenase (IDO) and the concentrations of L-tryptophan and its metabolite L-kynurenine were determined in association with various renal diseases. However, there have ... -
Ultrasonic-assisted extraction method of phenolic compounds in Extra-Virgin Olive Oils (EVOOs) by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry (UPLC-MS/MS)
Kıvrak, Şeyda; Kıvrak, İbrahim (Taylor & Francis Inc, 2020)There is an increasing trend in the consumption of extra virgin olive oil, owing to its health benefits. These health benefits are mainly correlated to health-promoting phenolic components. The aim of this study was to ...