Yazar "Kivrak, Ibrahim" için Scopus İndeksli Yayınlar Koleksiyonu 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 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 ...