Leaf essential oils of six Vietnamese species of Fissistigma (Annonaceae)

摘要

The compositions of essential oils of the leaves of six Vietnamese species of Fissistigma Griff. (Annonaceae) were determined by means of GC and GC/MS. F. chloroneurum (Hand.-Mazz.) Y. Tsiang yielded an oil in which the major components were (E)-α-bergamotene (52.0%), (E)-β-caryophyllene (9.0%) and β-bisabolene (6.0%). The major components of the leaf oil of F. cupreonitens Merr. et Chun were (E)-β-caryophyllene (27.7%), bicyclogermacrene (14.7%) and α-muurolene (7.1%), whereas those of the leaf oil of F. pallens (Fin. & Gagnep.) Merr. were germacrene D (30.2%), bicyclogermacrene (26.4%) and bicycloelemene (18.3%). The essential oil of F. bicolor (Roxb.) Merr. was very similar, mainly comprised of (E)-β- caryophyllene (13.3%), (E)-α-bergamotene (13.1%), (Z)-β-farnesene (12.3%), p-cymene (8.9%), β-bisabolene (6.6%) and elemol (6.5%). The main constituents of the essential oil of F. shangtzeense Y. Tsiang & P. T. Li were (E)-β-caryophyllene (28.1%), bicyclogermacrene (10.3%) and α-muurolene (8.8%), whereas those of F. petelotii Merr. were α-pinene (15.4%), bicyclogermacrene (13.9%), bicycloelemene (10.8%) and (E)-β-caryophyllene (9.9%).