Composition, antimicrobial and antioxidant activity of the extracts of Eryngium palmatum PaniA double dagger and Vis. (Apiaceae)
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The chemical composition, antimicrobial and antioxidant activity of Eryngium palmatum, an endemic plant species from the Balkan Peninsula, were investigated. The flavonoids apigenin (9.5 +/- 0.3 mg g(-1)) and apigenin 7-O-glucoside (2.4 +/- 0.1 mg g(-1)) were determined in a methanol extract of aerial parts using HPLC analysis. The methanol extract of roots contained catechin (5.0 +/- 0.1 mg g(-1)), epicatechin (2.9 +/- 0.1 mg g(-1)), chlorogenic acid (1.6 +/- 0.0 mg g(-1)), gallic acid (0.9 +/- 0.0 mg g(-1)) and rosmarinic acid (0.9 +/- 0.2 mg g(-1)). GC-FID and GCMS analysis of a chloroform extract of aerial parts showed that the main volatile constituents were falcarinol, linoleic acid, hexadecanoic acid and methyl linoleate (comprising 32.6%; 24.4%; 19.9; 13.2% of the volatile fraction, respectively), while octanoic acid, tetradecanol and dodecanol dominated in the chloroform extract of the roots (34.9%; 25.8%; 22.2% of the volatile fraction, respectively). Investigation of antimic...robial activity by broth microdilution showed that the methanol and chloroform extracts of aerial parts and roots exerted a significant effect (MIC 3.5-15.6 mu g mL(-1)) against tested Gram-positive and Gram-negative bacteria. The methanol extracts of aerial parts or roots exerted moderate ferric reducing antioxidant power, DPPH radical scavenging activity and hydroxyl radical scavenging activity.
Keywords:Eryngium palmatum / Extracts / Composition / Antimicrobial activity / Antioxidant activity
Source:Central European Journal of Biology, 2014, 9, 2, 149-155
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