Chemical compositions of essential oils of five introduced conifers in Corsica

<p>The aim of this survey was to determine the chemical composition of essential oils (EO) of five conifers acclimated in Corsica by GC(RI), GC–MS and <sup>13</sup>C NMR. <i>L. decidua</i> needle and wood EOs contained as majors components: α- and β-pinenes, germacrene D (needles) and bornyl acetate (wood). The EOs of needles, wood and cones of <i>P. menziesii</i> were characterised by β- and α-pinenes, terpinen-4-ol, sabinene, terpinolene (needles and wood), Δ-3-carene (wood) and limonene (cones). Needles and wood EOs of <i>P. ponderosa</i> contained as major components: β- and α-pinenes, Δ-3-carene (wood) and estragole (needles). <i>S. giganteum</i> EOs of foliage and wood were rather similar and dominated by α-pinene, and safrole. The EOs of leaf, wood and cones from <i>C. japonica</i> were very similar, and exhibited α-pinene, sabinene, β-elemol and kaurene as major constituents. It appeared that EO compositions of some species were different from reported literature data.</p>