Essential fatty acid components and antioxidant activities of eight Cephalaria species from southwestern Anatolia

The hexane extracts of eight (Dipsacaceae) species, which were collected from southwestern Anatolia, were obtained by Soxhlet apparatus. The fatty acids were derived to methyl esters and determined by gas chromatography/flame ionization detector (GC/FID) and gas chromatography/mass spectrometry (GC/...

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Bibliographic Details
Published in:Pure and applied chemistry 2007-12, Vol.79 (12), p.2297-2304
Main Authors: Kırmızıgül, Süheyla, Böke, Nazlı, Sümbül, Hüseyin, Göktürk, R. Süleyman, Arda, Nazlı
Format: Article
Language:English
Subjects:
antioxidant activity
Antioxidants
Cephalaria species
Chromatography
Dipsacaceae
Esters
Fatty acids
Ferric thiocyanate
Flame ionization detectors
Gas chromatography
Ionization
lipid peroxidation
Lipids
Mass spectrometry
radical scavenging
Scavenging
Thiobarbituric acid
Thiocyanates
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Summary:The hexane extracts of eight (Dipsacaceae) species, which were collected from southwestern Anatolia, were obtained by Soxhlet apparatus. The fatty acids were derived to methyl esters and determined by gas chromatography/flame ionization detector (GC/FID) and gas chromatography/mass spectrometry (GC/MS) systems. The dominant fatty acid components and maximum percentages were detected as myristic [in (17.48 %)], palmitic [in , , , (19.51 %), and ], linoleic [in (33.02 %), , , and ], α-linolenic (ALA) [in , , , , , and (47.95 %)] and oleic [in and (40.66 %)] acids. The antioxidant activity of all hexane extracts was evaluated by 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferric thiocyanate (FTC), and thiobarbituric acid (TBA) methods. The results indicate that hexane extracts of species possess considerable antioxidant activity. The highest radical scavenging activity was detected in (IC = 741 μg/mL). The most effective species on lipid peroxidation are and in FTC and TBA assays, respectively. This study reveals that species are attractive sources of fatty acid components, especially the essential ones, as well as of effective natural antioxidants.
ISSN:0033-4545
1365-3075
DOI:10.1351/pac200779122297