Volatile constituents of leaf oils from the Cupressacea family:: Part I.: Cupressus macrocarpa Hartw., C-arizonica Greene and C.torulosa Don species growing in Argentina

Volatile compounds from Cupressus macrocarpa Hartw., C. arizonica Greene and C, torulosa Don. leaves collected in the Argentinian Patagonia were isolated by steam distillation yielding 0.78%, 1.01% and 0.61% of essential oils, respectively. Leaf oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) C. macrocarpa oil: alpha-pinene (20.2%), sabinene (12.0%), p-cymene (7.0%) and terpinen-4-ol (29.6%); (ii) C. arizonica oil: alpha-pinene (22.9%), limonene (8.5%), umbellulone (16.5%), terpinen-4-ol (5.5%) and cis-muurola-4(14),5-diene (9.0%); and (iii) C. torulosa oil: alpha-thujene (4.2%), alpha-pinene (25.8%), sabinene (22.3%), myrcene (4.7%) and terpinen-4-ol (9.3%).