Constituents of the Essential Oil ofLaggera tomentosaSch. Bip. ex Oliv. et Hiern Endemic to Ethiopia

Autor: Nigist Asfaw, Hans Johan Storesund, Lars Skattebøl, Arne J. Aasen
Rok vydání: 2003
Předmět:
Zdroj: Journal of Essential Oil Research. 15:102-105
ISSN: 2163-8152
1041-2905
DOI: 10.1080/10412905.2003.9712081
Popis: The essential oil from Laggera tomentosa Sch. Bip. ex Oliv. et Hiern (Asteraceae) endemic to Ethiopia was investigated by means of GC, GC/MS and NMR spectroscopy. Forty-nine compounds constituting 94% of the oil were identified. The oil composition was characterized by a high percentage of oxygenated monoterpenes (78%), the major compound being chrysanthenone (58%). Sesquiterpene hydrocarbons constituted 10%, while the monoterpene hydrocarbons and oxygenated sesquiterpenes accounted for 3% each. The high percentage of chrysanthenone and the other main compounds isochrysantenone, filifolone and (Z)-isogeranic acid made the composition of the oil markedly different from those of the other species of the genus.
Databáze: OpenAIRE