Essential Oils from Leaves of Two Paraguayan Rutaceae:Zanthoxylum hyemaleA. St. Hil. andZ. naranjilloGriseb

Aerial parts of the species Zanthoxylum hyemale and Zanthoxylum naranjillo which present the same botanical apparence were subjected to hydrodistillation. Twenty nine compounds have been identified by GC/MS analysis of the essential oils. Sesquiterpenes such as spathulenol and bicyclogermacrene are the main components