Comparative analysis of the composition of the essential oil from the shoots, leaves and stems the wild Ledum palustre L. from Estonia

The aerial parts of Ledum palustre L. were collected near to Pudisoo River, Harju country, Estonia, in September 2007. The simultaneous distillation and extraction micro-method (SDE) was used to isolate the essential oil from the plant's samples. The capillary gas chromatographic (GC/FID) analysis was applied to the identification of oil components and determination of their content in the oil. The yield of oil from the leaves was 0.92%, from the stems, 0.24% and from the shoots, 0.78%. A total of 68 constituents, accounting for over 95% of the total oil yield, were identified in the oils.