Yazar "Ozkaya, Ahmet" için listeleme
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Chemical Changes in Leaves of Corn and Bean Plants Exposed to Simulated Acid Rain
Ozkaya, Ahmet; Ciftci, Harun; Yilmaz, Okkes; Cil, Erol; Basar, Salih (CHEM SOC PAKISTAN, 2012)In this study, the effects of simulated acid rain on vitamin E, vitamin D-2 and fatty acids levels of corn and bean leaves were investigated. It was determined that the level of palmitoleic acid (C16:1) increased in ... -
Chemical Composition of Nigella sativa L. Seeds Used as a Medical Aromatic Plant from East Anatolia Region, Turkey
Vatansev, Husamettin; Ciftci, Harun; Ozkaya, Ahmet; Ozturk, Bahadir; Evliyaoglu, Nurcan; Kiyici, Aysel (ASIAN JOURNAL OF CHEMISTRY, 2013)In this study, chemical composition such as vitamins, fatty acids and trace elements of Nigella sativa L. seeds collected from East Anatolia Region of Turkey were investigated. Fatty acids in the lipid extracts were converted ... -
Determination of fatty acids, vitamins and trace elements in Pistacia terebinthus coffee
Ciftci, Harun; Ozkaya, Ahmet; Kariptas, Ergin (WFL PUBL, 2009)Composition of fatty acids, trace elements and fat-soluble vitamins of Pistacia terebinthus coffee, produced in Elazig,Turkey, was determined. Analyses were performed by using GC, ICP-OES and HPLC, respectively. The accuracy ... -
Effects of Ellagic acid and Hesperetin on Levels of Some Elements in Livers of Aluminum-Induced Rats
Ozkaya, Ahmet; Ciftci, Harun; Dayangac, Alpaslan; Cevrimli, B. Sitki; Olcucu, Ali; Celik, Sait (TURKISH BIOCHEM SOC, 2013)Objective: Ellagic acid and hesperetin are well known as having free radical scavenging activity in some rat tissues. Aluminum is known to cause toxic effects on various organ systems. In this study, the protective role ... -
Levels of Fat-Soluble Vitamins in Some Foods
Ciftci, Harun; Ozkaya, Ahmet; Cevrimli, B. Sitki; Bakoglu, Adil (ASIAN JOURNAL OF CHEMISTRY, 2010)The levels of vitamins in nine food of winter season which are grown in Turkey were determined. High performance liquid chromatography (HPLC) was used in this work. Eight vitamins were detected in the foods. The contents ... -
Linalool Improve Biochemical Damage and Fatty Acids Composition of Testes on Fasting Male Rats
Dayangac, Alpaslan; Bahsi, Muammer; Ozkaya, Ahmet; Yilmaz, Okkes (MEDWELL ONLINE, 2011)The aim of this study was to evaluate fatty acids compositions, oxidative stress levels and some antioksidant levels in the testes of 24 h fasted rats and linalool application. Adult male Wistar albino rats were assigned ... -
Multı-Element Determınatıon Of Macro And Trace Elements In Kıdney Of Dmba And Lınalool Applıed Guınea Pıgs By Inductıvely-Coupled Plasma Atomıc Emıssıon Spectrometry (Icp-Aes)
Ciftci, Harun; Dayangac, Alpaslan; Ozkaya, Ahmet; Cevrimli, Bekir S.; Erdag, Raziye; Olcucu, Ali; Ates, Sema (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2011)Determination of trace elements in biological samples is important because of their vital role in metabolism, health and oxidative stress. Oxidative stress is caused by reactive oxygen species, depending on many factors ... -
Optimization of Analytical Parameters for Determination of Iron, Nickel and Cobalt in Plants with RP-HPLC
Ciftci, Harun; Oelcuecue, Ali; Ozkaya, Ahmet; Ciftci, Tacettin (ASIAN JOURNAL OF CHEMISTRY, 2009)This study optimized the analytical parameters such as combination of mobile phase, pH of mobile phase, attempt effect of strange ions and current rate for simultaneous determination of iron, nickel and cobalt. ... -
Vitamin, Trace Element, and Fatty Acid Levels of Vitex agnus-castus L., Juniperus oxycedrus L., and Papaver somniferum L. Plant Seeds
Ozkaya, Ahmet; Ciftci, Harun; Yilmaz, Okkes; Tel, Ahmet Zafer; Cil, Erol; Cevrimli, B. Sitki (HINDAWI LTD, 2013)The levels of fat-soluble vitamin, trace element and fatty acid of Vitex agnus-castus L., Juniperus oxycedrus L., and Papaver somniferum L. seeds in Turkey were determined by using HPLC, ICP-OES, and GC, respectively. In ...
