Kurumun Atıf Alan Makalesi
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Antioxidant properties of methanolic extract and fatty acid composition of Centaurea urvillei DC. subsp. hayekiana Wagenitz
Scopus
Toplam 114 atıf
Centaurea is one of most important genera of Turkey flora. Some members of the genus have been used in Anatolian folk medicine. This study was undertaken in order to examine the in vitro antioxidant activities and fatty acid composition of Centaurea urvillei subsp. hayekiana. Antioxidative properties of the methanolic extract was assessed by different in vitro experiments including total phenolic and flavonoid content, phosphomolybdenum assay (total antioxidant capacity), free radical scavenging assay, β-caroten/linoleic acid bleaching test system, ferric and cupric ion reducing power. According to the results of antioxidant capacity assays, C. urvillei subsp. hayekiana showed moderately antioxidant activity in test methods. Fatty acid analysis was performed by GC and thirty-two fatty acids were identified. The oil of C. urvillei subsp. hayekiana was characterized by higher amounts of C 18:2 ω6 (linoleic acid) and C 18:1 ω9 (oleic acid). The results suggested that C. urvillei subsp. hayekiana may be utilized as a source of both natural antioxidant and linoleic acid in healthy medicine and food industry. © 2011 Reproduction is free for scientific studies. © 2011 Reproduction is free for scientific studies.
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Screening for in vitro antioxidant properties and fatty acid profiles of five Centaurea L. species from Turkey flora
Scopus
Havuzumuzda 65 atıf almış
Centaurea species are used for the treatment of various ailments in the popular medicine in some countries. This study was designed to examine antioxidant potentials and fatty acid profiles of five Centaurea species from Turkey flora. Antioxidant properties of methanolic extracts from these species were evaluated by six different methods: phosphomolybdenum assay, free radical scavenging assay, β-carotene/linoleic acid test system, metal chelating activity, ferric and cupric reducing power. Total phenolic and flavonoid concentrations of each extract were also determined using the Folin-Ciocalteu reagent and aluminum chloride. The results of these assay showed a significant antioxidant capacity in all researched extracts. Centaurea cheirolopha extract, with the highest amount of total phenolic and flavonoids, showed the highest antioxidant activities in all assay, except for metal chelating. Fatty acid profiles of these species were examined by GC-FID and 30 fatty acids were identified. Palmitic, linoleic, oleic, and linolenic acid were detected as the main components. The results of the study indicated that the Centaurea species can be considered as a source of new natural antioxidants and unsaturated fatty acids for food, cosmetic and pharmaceutical industries. © 2011 Elsevier Ltd.
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Kurumlar (1)
Selçuk Üniversitesi
Selçuklu, Turkey