Yazar "Kivrak, Ibrahim" için listeleme
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Analytical evaluation of phenolic compounds and minerals of Opuntia robusta JC Wendl. and Opuntia ficus-barbarica A. Berger
Kivrak, Seyda; Kivrak, Ibrahim; Karababa, Ersan (Taylor & Francis Inc, 2018)In this study, 19 phenolic compounds were detected using high-throughput instrument ultra performance liquid chromatography with electrospray ionization tandem mass spectrometry (UPLC-ESI-MS/MS) in Opuntia ficus-barbarica ... -
Antioxidant and antimicrobial properties of ethanolic extract from Lepista nuda (Bull.) Cooke
Mercan, Nazime; Duru, Mehmet Emin; Turkoglu, Aziz; Gezer, Kudret; Kivrak, Ibrahim; Turkoglu, Huseyin (Springer, 2006)Antioxidant capacity and antimicrobial activities of Lepista nuda (Bull.) Cooke extracts obtained with ethanol were investigated. Four complementary test systems, namely DPPH free radical scavenging, beta-carotene/linoleic ... -
Assessment of phenolic profile of Turkish honeys
Kivrak, Seyda; Kivrak, Ibrahim (Taylor & Francis Inc, 2017)In this study, phenolic profile and antioxidant activity of 60 Turkish honey samples of nineteen different floral origins were evaluated by ultra-performance liquid chromatography with electrospray ionization coupled to ... -
Bioactive Compounds, Chemical Composition, and Medicinal Value of the Giant Puffball, Calvatia gigantea (Higher Basidiomycetes), from Turkey
Kivrak, Ibrahim; Kivrak, Seyda; Harmandar, Mansur (Begell House Inc, 2016)In this study, the compositions of Calvatia gigantea were first analyzed in order to elucidate its chemical basis for development as a health-enhancing food or medicine. This study investigates the chemical composition ... -
Chemical composition effects onto antimicrobial and antioxidant activities of propolis collected from different regions of Turkey
Mercan, Nazime; Kivrak, Ibrahim; Duru, Mehmet Emin; Katircioglu, Hikmet; Gulcan, Sibel; Malci, Savas; Salih, Bekir (Springer, 2006)Chrysin, apigenin, flavonoids, flavanones, naringenin, ethyl oleate, 3-4-dimethoxy-cinnamic acid and 9-octadecenoic acid were the predominant components of propolis samples collected from different regions of Turkey. The ... -
Chemical composition, antimicrobial and antioxidant activities of Centaurea ensiformis Hub.-Mor. (Asteraceae), a species endemic to Mugla (Turkey)
Ugur, Aysel; Duru, Mehmet Emin; Ceylan, Ozgur; Sarac, Nurdan; Varol, Omer; Kivrak, Ibrahim (Taylor & Francis Ltd, 2009)The n-hexane, chloroform, ethyl acetate and ethyl alcohol extracts of the aerial parts of Centaurea ensiformis, endemic to Turkey, have been assessed for antimicrobial and antioxidant activities. The chemical composition ... -
Free Amino Acid Profiles of 17 Turkish Unifloral Honeys
Kivrak, Ibrahim (Taylor & Francis Inc, 2015)Free amino acids of 58 unifloral honeys of 17 different floras (cedar, eucalyptus, vitex, carob, clover, honeydew, sunflower, citrus, heather, thyme, flower, chestnut, sideritis, acacia, lavender, cotton, and mad honeys) ... -
Free amino acid profiling in the giant puffball mushroom (Calvatia gigantea) using UPLC-MS/MS
Kivrak, Ibrahim; Kivrak, Seyda; Harmandar, Mansur (Elsevier Sci Ltd, 2014)Wild edible and medicinal mushroom, Calvatia gigantea, was quantitatively analyzed for the determination of its free amino acids using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The ... -
Investigation of phenolic profiles and antioxidant activities of some Salvia species commonly grown in Southwest Anatolia using UPLC-ESI-MS/MS
Kivrak, Seyda; Gokturk, Tolga; Kivrak, Ibrahim; Kaya, Ergun; Karababa, Ersan (Soc Brasileira Ciencia Tecnologia Alimentos, 2019)Aerial parts of Salvia albimaculata Hedge & Hub.-Mor., Salvia potentillifolia Boiss & Heldr. ex Bentham. and Salvia nydeggeri Hub.-Mor. from Soutwest Anatolia, Turkey were evaluated to determine their phenolic compounds ... -
Phenolic Compounds of Pinus brutia Ten.: Chemical Investigation and Quantitative Analysis Using an Ultra-Performance Liquid Chromatography Tandem Mass Spectrometry with Electrospray Ionization Source
Kivrak, Ibrahim; Kivrak, Seyda; Harmandar, Mansur; Cetintas, Yunus (Acg Publications, 2013)In this study, phenolic content of Pinus brutia's bark was examined using an ultra-performance liquid chromatography tandem mass spectrometry with electrospray ionization source (UPLC-ESI-MS/MS) working in multiple reaction ... -
Phenolic profiles, antimicrobial and antioxidant activity of the various extracts of Crocus species in Anatolia
Acar, Gulumser; Dogan, Nazime Mercan; Duru, Mehmet Emin; Kivrak, Ibrahim (Academic Journals, 2010)The phenolic profile and quantitative composition of methanol extracts of Crocus baytopiorum which was endemic species in Denizli, Turkey was detected by high performance liquid chromatography (HPLC-DAD). The HPLC analysis ...
