Aromatic plants from Brazil - Chemical composition of essential oils from some Campomanesia species (Myrtaceae)

The chemical composition of leaf oils from Campomanesia aurea, C. guazumifo lia, C. rhombea and C. xanthocarpa (Myrtaceae) were analyzed by GC and GC/M S. Sixty-two compounds have been identified ranging from 94-99% of the oil contents. Our results showed that all analyzed species were rich in sesquit erpenes, among them spathulenol (27.7%) and 1b-caryophyllene oxide (29.0%) in C. guazumifolia; bicyclogermacrene (13.6%) and globulol (10.8%) in C, rh ombea; and (E)-nerolidol (28.8%) in C. xanthocarpa. The monoterpene fractio n was well represented in C, aurea (40.3%), with predominance of the alpha -pinene (16.5%) and myrcene (11.5%), besides C. rhombea and C. xanthocarpa that showed an important amount of linalool (9.7% and 17.2%, respectively).