Essential oil of two Lippia spp. (Verbenaceae) growing wild in Guatemala

The essential oils from Lippia alba and L. graveolens, growing wild in Guat emala, were obtained by hydrodistillation. The oil contents were 0.22% (L. alba) and 0.26% (L. graveolens) (v/w), on a dry weight basis. The oil compo sitions were analysed by GC and GC-MS. Essential oil from L. alba was chara cterized by a high amount of limonene (43.6%) and piperitone (30.6%). The e ssential oil of L. graveolens consisted mainly of thymol (31.6%) and sesqui terpenes. Caryophyllene (4.6%) and caryophyllene oxide (4.8%) were the main components of the sesquiterpenoidic fraction. Copyright (C) 2001 John Wile y & Sons, Ltd.