THE EFFECTS OF HABITAT TYPE AND DIURNAL HARVEST ON ESSENTIAL OIL YIELD AND COMPOSITION OF Lavandula angustifolia Mill
The world demand for lavender essential oil is still increasing. It is estimated that over two hundred thousands hectares are being cultivated in Europe and the quality of produced essential oil is important especially for medicinal and pharmaceutical uses as well as for aromatherapy. We tested and...
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Veröffentlicht in: | Fresenius environmental bulletin 2010-01, Vol.19 (8), p.1491-1498 |
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Sprache: | eng |
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Zusammenfassung: | The world demand for lavender essential oil is still increasing. It is estimated that over two hundred thousands hectares are being cultivated in Europe and the quality of produced essential oil is important especially for medicinal and pharmaceutical uses as well as for aromatherapy. We tested and evaluated the quantity and the quality of essential oil produced by one lavender genotype, Lavandula angustifolia var etherio, which is well adapted in Greece region, in two different experimental sites (Kato Sholari and Kilkis). The diurnal essential oil yield and oil composition were also tested. The genotype presented an excellent transplantation degree and high survival percentage in the field. Small differences were recorded in production of oil between the experimental sites (for Kato Scholari was 2.67 c 0.12% and for Kilkis region 2.54 c 0.13%). Differences were recorded in essential oil composition between the experimental sites. The main compounds were linalyl acetate (30.62%), linalool (29.56%), 1,8-cineole (5.18%) and camphor (4.03%) for Kato Sholari. The main compounds for Kilkis were linalyl acetate (26.92%), linalool (16.78%), 1,8-cineole (15.55%) and camphor (7.41%). Diurnal differences in oil yield were not observed. In contrast the major compounds percentage showed differences. The high content of linalyl acetate and linalool and low content of 1,8-cineole and camphor for Kato Scholari resulted in a very pleasant and delightful aroma. The selection of a field for lavender cultivation in a big scale should take into consideration the local conditions. Calcareous, well drainage light substrates are suggested as the most suitable for lavender oil production. It is also concluded from this study that the best time for lavender harvesting is after midday and during afternoon where the linalyl acetate is higher. |
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ISSN: | 1018-4619 |