Composition of essential oils of Pinus sylvestris L. from different locations of Lithuania

Oils of Pinus sylvestris L. produced from plant material collected from dif ferent locations in Lithuania have been investigated by GC and GC/MS. The o il content in many samples was approximately 1 mL/100 g (dry weight) with f ew exceptions when it was slightly higher or lower. More than 70 constituen ts were identified (64 positively and 10 tentatively) in the oils. alpha-Pi nene (18.5-33.0%) and delta-3-carene (9.1-24.6%) were dominating constituen ts with the only one exception when the germacrene-4-ol content in one of t he samples was 13.2%. The important bornyl acetate content varied from 0.5% to 3.0%. The main sesquiterpenes were beta-caryophyllene, germacrene D, bi cyclogermacrene, delta-cadinene, gamma-cadinene, germacrene D-4-ol, cubenol (2.0-5.1%) and alpha-cadinol (1.9-7.7%).