ISHS Acta Horticulturae 826: I International Medicinal and Aromatic Plants Conference on Culinary Herbs
ESSENTIAL OIL COMPOSITION OF SOME WILD AND CULTIVATED MEDICINAL PLANTS |
| Author: | S. Kızıl |
| Keywords: | Thymbra spicata, T. sintenisii, Tanacetum densum, essential oil, carvacrol, thymol, bisabolone oxide |
| Abstract:
Thymbra species are abundantly found in the wild, and also Tanacetum densum (Lab.) Schultz Bip. subsp. amani Heywood is an endemic plant of the Southeastern Anatolian, Turkey. Air-dried aerial parts of the plants were submitted to hydrodistillation, for 3 hours, using a Clevenger-type apparatus. Cultivated and wild Thymbra spicata var. spicata, Thmybra sintenisii Bornm. & Aznav. and Tanacetum densum subsp. amani species were compared for their essential oil constituents using GC/MS analysis. The results showed that the major constituents of essential oil of both Thymbra species were carvacrol,  -terpinene, p-cymene, ß-caryophyllene, myrcene and  -phellandrene.
Essential oil of cultivated T. spicata contained lower carvacrol percentage (67.91%) compared to the carvacrol percentage of cultivated species (72.56%). Conversely -pinene percentage of cultivated T. sintenisii was higher compared to wild forms. P-cymene was found second major constituent in the essential oil T. sintenisii.
Tanacetum oil was pale greenish and had a pleasant odour, with a yield of 0.1% (v/w) for wild form and 0.15% for cultivated form.
Twenty-three components representing 84.53-93.41% of the oil were characterized, of which bisabolone oxide (25.62%), carvacrol (26.73%), isoborneol (10.07%), borneol (14.05%), ß-panasinsene (8.95%), eucalyptol (10.13%) and camphor (4.71%) were the main compounds.
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