ESSENTIAL OILS OF THYMUS COMOSUS HEUFF. EX GRISEB. ET SCHENK (LAMIACEAE) COLLECTED FROM DIFFERENT AREAS OF ROMANIA
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2014, Vol 60, Issue 1
Abstract
The factors that determine the composition of the essential oil are numerous and sometimes it is difficult to distinguish since many of them are interdependent. From the category of these factors we can mention seasonal variations, geographic area and growth stages. In the literature there are some data indicating changes in the chemical composition of the essential oil according to the geographical regions in which the plants grow. To highlight any changes that may occur in the chemical composition of volatile oil according to geographical areas, samples of Thymus comosus were collected from three different locations with different altitudes. The volatile oil was extracted by hydrodistillation according to European Pharmacopoeia standards. The separation and the identification of the components have been carried out using GC-MS (gas chromatography coupled with massspectrometry). Our analysis led to the identification of a total of 51 chemical compounds, the largest number being found in Thymus comosus collected from Brașov (44 compounds) and the lowest number in Thymus comosus collected from Păltiniș (12 compound). In conclusion, our studies reveal the fact that geographical area and the altitude can be contributing factors of the quality and quantity of volatile oil.
Authors and Affiliations
IRINA BOZ, IOAN BURZO, MARIA ZAMFIRACHE, RODICA EFROSE
Keywords
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