Determination of the volatile constituents and total phenolic contents of some endemic Stachys taxa from Turkey |
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Authors: | G. Ozkan R. S. Gokturk O. Unal S. Celik |
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Affiliation: | (1) Department of Food Engineering, Faculty of Agriculture, Suleyman Demirel University, 32260 Isparta, Turkey;(2) Department of Biology, Faculty of Science and Arts, Akdeniz University, 07058 Antalya, Turkey;(3) Department of Biology, Faculty of Science and Arts, Canakkale 18 Mart University, 17100 Canakkale, Turkey |
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Abstract: | The total phenolic contents and the essential oil compositions of the previously unknown Stachys taxa (Labiatae), including Stachys pinardii Boiss, Stachys cretica L. subsp. mersinaea (Boiss.) Rech., and Stachys aleurites Boiss. & Heldr., all endemic to Turkey, were studied. Their essential oil compositions were investigated by GC-MS. It was found that the main constituents were α-curcumene (34.10%) for S. cretica, cedrandiol (25.26%) and caryophyllene dioxide (22.15%) for S. pinardii, and (Z)-β-caryophyllene (31.60%) for S. aleurites. The total phenolic contents, by the Folin-Ciocalteu colorimetric method, of the S. pinardii, S. cretica subsp. mersinaea, and S. aleurites methanolic extract were found to be 600.74±0.23, 1200.94±0.11, and 900.61±0.06 mg gallic acid equivalent (GAE)/100 g in dried herb, respectively. Published in Khimiya Prirodnykh Soedinenii, No. 2, pp. 141–143, March–April, 2006. |
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Keywords: | Stachys pinardii Stachys cretica subsp. mersinaea Stachys aleurites volatile constituents total phenolics |
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