|
Résumé :
|
The essential oil of the leaves of Brachanthemum gobicum Krasch., B. mongolicum Krasch. and B. mongolorum grub. were investigated by GC and GC/MS. The clear essential oil of B. gobicum was dominated by 1,8-cineole (42.6%) and camphor (29.1%) with moderate amounts of camphene (6.1%), α-pinene (2.5%), p-cymene (1.8%), terpinen-4-ol (1.8%) and cis-sabinene hydrate (1.3%). The oil of B. mongolicum had an abundance of camphor (39.5%) and 1,8-cineole (20.2%) and with moderate amounts of camphene (11.5%), borneol (9.5%), bornyl acetate (4.1%), cis-thujone (1.9%), α-pinene (1.3%) and p-cymene (1.1%). The major constituents of the blue oil of B. mongolorum were chamazulene (18.3%) and 1,8-cineole (14.6%) followed by (b)-caryophyllene (7.2%), germacrene D (5.4%),dehydro-1,8-cineole (4.5%), p-cymene (3.8%), (E)-β-ocimene (3.6%), caryophyllene oxide (2.7%) and limonene (2.3%).
|
