Essential Oils of SomeLauraceaeSpecies from the Southwestern Parts of China

ABSTRACT The constituents of the leaf oils from ten Chinese Lauraceae species (Cinnamomum glanduliferum (Wall.) Nees, Cinnamomum burmannii CG. & Th. Nees, Lindera thomsonii Allen, Lindera communis Hemsl., Lindera angustifolia Cheng, Machilus longipedicellata Lecomte, Machilus yunnanensis Lecomte, Neocinnamomum delavayi (Lecomte) H. Liou, Phoebe kwangciensis Liou, Phoebe nigrifolia S. Lee et F. N. Wei) found in the southwestern parts of China were analyzed by capillary GC and GC/MS. The individual mono- and sesquiterpenes were identified by MS spectra comparing with those of authentic specimens. The identified components constituted 88.5–99.6% of these oils. These leaf oils were found to be rich in monoterpenes (43.2–94.9%) and sesquiterpenes (1.3–47.4%). Twenty-six to forty-five compounds have been characterized by GC/MS in each of the leaf oils of the ten Lauraceae species.