American Journal of Essential Oils and Natural Products

In continuation of our extensive research on Vietnamese medicinal as they are made available, we report the essential oils from the leaves of Garcinia Gracilis Pierre (Clusiaceae) and Canarium Parvum Leenh. (Burseraceae) of Vietnam which were obtained by hydrodistillation and then analyzed using GC/MS. Thirty-nine compounds were identified in the essential oil of G. Gracilis, which was dominated by sesquiterpene hydrocarbon (87.4%). The main sesquiterpene compounds were a-humulene (42.8%), b-caryophyllene (18.4%), a-selinene (8.7%), and b-selinene (7.2%). For C. Parvum, 56 compounds were identified, while the major classes of compounds were sesquiterpene hydrocarbons (47.6%) and oxygen-containing sesquiterpenes (33.3%). The major constituents comprised of b-caryophyllene (19.3%), germacrene D (6.6%), caryophyllene oxide (6.0%), a-humulene (5.0%), (E, E)-a-farnesene (4.3%) and limonene (4.0%). The essential oil constituents of G. Gracilis are being reported for the first time. The compositional pattern of C. Parvum showed both qualitative and quantitative variations with a previously analyzed oil sample. The paper discusses further the chemical forms of Garcinia and Canarium oil samples.