Essential oils obtained by separate hydrodistillation of leaves of three plants collected in Nigeria were analysed comprehensively for their constituents by means of gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Germacrene D (28.4%), α-pinene (17.1%), β-caryophyllene (7.5%) and caryophyllene oxide (6.0%) were the major compounds of Aspilia africana (Pers.) C. D. Adams (Asteraceae). The oil of Lippia multiflora Moldenke (Verbenaceae) comprised mainly of sabinene (13.0%), β-caryophyllene (21.8%) and rimuene (14.6%) as dominant compounds, with significant quantity of abietatriene (7.1%), β-pinene (4.0%) and caryophyllene oxide (4.3%). The species is a source of new chemotype. β-Caryophyllene (19.0%) and geranial (10.6%) were identified in higher proportions from Spondias lutea L. (Anacardiaceae), with significant amounts of neral (5.1%), caryophyllene oxide (5.6%) and d-cadinene (4.6%). The paper will discuss further the chemotaxonomic importance of the results
Chemical composition of essential oils from Nigerian plants
FLAMINI, GUIDO
2012-01-01
Abstract
Essential oils obtained by separate hydrodistillation of leaves of three plants collected in Nigeria were analysed comprehensively for their constituents by means of gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Germacrene D (28.4%), α-pinene (17.1%), β-caryophyllene (7.5%) and caryophyllene oxide (6.0%) were the major compounds of Aspilia africana (Pers.) C. D. Adams (Asteraceae). The oil of Lippia multiflora Moldenke (Verbenaceae) comprised mainly of sabinene (13.0%), β-caryophyllene (21.8%) and rimuene (14.6%) as dominant compounds, with significant quantity of abietatriene (7.1%), β-pinene (4.0%) and caryophyllene oxide (4.3%). The species is a source of new chemotype. β-Caryophyllene (19.0%) and geranial (10.6%) were identified in higher proportions from Spondias lutea L. (Anacardiaceae), with significant amounts of neral (5.1%), caryophyllene oxide (5.6%) and d-cadinene (4.6%). The paper will discuss further the chemotaxonomic importance of the resultsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
