Aromatic Plants of Tropical Central Africal XXXVIII: Chemical Composition of the Essential Oils from Four Aframomum Species Collected in Comeroon(1)

摘要

The essential oils isolated by hydrodistillation from the leaves or seeds of Aframomum citratum (Pereira)K. Schum., Aframomum hanbruyi K.Schum. , A. letestuanum Gagnpain and A. pruinosum Gagnepain (Zingberaceae) grown in Cameroom were analyzed by GC and GC/MS. The leaf oils obtained from A. citratum and A.hanburyi were characterized by being rich in monoterpene hydrocarbonds , dominated by pinenes. The major volation components from seeds of the species were oxygenated compounds belonging to the acyclic terpene class, such as geraniol (70.7%) in the case of A. citratum , (E,E)-franesol (27.3%) and linalool (19.0%) for A hanburyi, while A. letestuanum and A. Pruinosum contained a main proportion of (E)-nerolidol (67.0% and 91.7%, respectively) in their seeds oils.