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THE COMPOSITION OF ESSENTIAL OIL FROM THREE ECOTYPES OF ORIGANUM VULGARE L. SSP. VULGARE CULTIVATED IN POLAND

RENATA NURZYŃSKA-WIERDAK1*, ANNA BOGUCKA-KOCKA2, IRENEUSZ SOWA3, GRAŻYNA SZYMCZAK4

1University of Life Sciences in Lublin, Faculty of Horticulture and landscape Architecture, Department of Vegetable Crops and Medicinal Plants, Leszczyńskiego 58, 20-068 Lublin, Poland
2Medicinal University of Lublin, Faculty of Pharmacy, Department of Pharmaceutical Botany, Chodźki 1, 20-093 Lublin, Poland
3Medicinal University of Lublin, Faculty of Pharmacy, Department of Analytical Chemistry, Chodźki 4A, 20-093 Lublin, Poland
4Botanical Garden of Maria Curie-Skłodowska University in Lublin, Sławinkowska 3, 20-810 Lublin, Poland

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The chemical composition of oregano essential oil of different origin extracted from oregano plants grown in south-eastern Poland was analysed using the gas chromatography - mass spectrometry (GC-MS) and gas chromatography - flame ionization detector (GC-FID). The dominant compound was sabinene; its percentage proportion ranged from 10.85% to 25.46%, depending on the ecotype studied. Moreover, the oregano volatile oil was characterized by a significant percentage of the following compounds: germacrene D (9.36-15.34%), Z-(β)-ocimene (9.10-16.33%), and E-caryophyllene (9.38- 12.87%). The investigated oil did not contain phenolic compounds.