Geographical variation of essential oil yield and composition of Lavandula stoechas subsp. stoechas growing wild in Crete, Greece
1994
Chedli, A.
Yield and chemical composition of essential oil obtained by water distillation from leaves and inflorescence of Lavandula stoechas L. are studied and compared in among four natural populations in Crete which are Fodele, Akrotiri, Laki and Sfinari. The highest mean yield was noted in Akrotiri 4.18 per cent. The range of essential oil yield for the whole population was 5.5 per cent. Quantitative and qualitative analysis of Lavandula stoechas L. essential oil achieved by GC and GC-MS led to the identification of 32 oxygenated and non oxygenated chemical compounds (mostly monoterpenes). These components differed in their concentration in the essential oil and most of them differ from one population to another. Regarding their high content within the oil four components being fenchone, camphor, 1,8 cineole and myrtenyl acetate can be considered as major compounds, amounting 61.93 per cent and 69.25 per cent respectively in inflorescence and leaf essential oils. In terms of discrimination, Fodele is the most isolated population, since contrary to the three other populations it is characterised by the lowest yield and highest amounts of 1,8 cineole and myrtenyl acetate. In fact, it could be conducted that Fodele itself makes up one group or population and the three other populations together constitute one group or population only
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