Uruguayan essential oils.: Composition of leaf oil of Myrcianthes cisplatensis (Camb.) Berg. ('Guayabo colorado') (Myrtaceae)

Myrcianthes cisplatensis leaf oil, obtained by steam distillation, was analysed by GC-FID and CC-MS. Twenty-six components were identified in the oil (90% of the total composition); the enantiomeric distribution of alpha -pinene, beta -pinene, limonene, linalool. trrpinen-4-ol and alpha -terpineol was studied by multidimensional HRGC-HRGC. The major component was 1.8-cineole (54%). The enantiomeric purity for the (+) enantiomers for the monoterpenes studied was 96% for alpha -pinene, 49% for beta -pinene, 100% for limonene, 94 for linalool, 50% for terpinen-4-ol and 64% for alpha -terpineol. Copyright (C) 2001 John Wiley & Sons, Ltd.