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Abstract
The leaf oils of the 15 Australian members of the genus Flindersia have been examined by GC and GC/MS. They produced, in the main, sesquiterpenic oils with very little monoterpene content. Flindersia maculosa and F. dissosperma contained significant amounts of the C12 hydrocarbons geijerene and pregeijerene together with methyl geranate, α-pinene, β-caryophyllene and bicyclogermacrene in the case of F dissosperma and α-pinene, 1,8-cineole, β-caryophyllene and bicyclogermacrene in the case of F maculosa. In F acuminata and one chemotype of F australis the principal components were bicyclogermacrene, guaiol, bulnesol; the second chemotype of F. australis contained β-caryophyllene and spathulenol as major components and lacked guaiol and bulnesol. The leaf oils of F. bennettiana, produced an oil rich in bicyclogermacrene, while in F. bourjotiana the principal component was β-caryophyllene. In F. brassiii the principal components were α-cadinol and δ-cadinene, while in F. brayleyana they were spathulenol and caryophyllene oxide. Flindersia collina gave an oil dominated by (E,E)-farnesol. The leaf oil of F. ifflaiana was dominated by β-caryophyllene, α-humulene and bicyclogermacrene, while that from F. laevicarpa was variable with major components being β-caryophyllene, germacrene D, bicyclogermacrene and elemol. Flindersia oppositifolia gave a variable oil with both mono- and sesquiterpenes in significant amounts, while F pimenteliana gave an oil dominated either by β-caryophyllene and bicyclogermacrene or by α-pinene. The leaf oil from F. schottiana contained significant amounts of monoterpenes, with α-pinene or sabinene being the major component while that from F. xanthoxyla was dominated by bicyclogermacrene, δ-cadinene and β-caryophyllene.
Key Word Index:
- Flindersia acuminate
- Flindersia australis
- Flindersia bennettiana
- Flindersia bourjotiana
- Flindersia brassii
- Flindersia brayleyana
- Flindersia collina
- Flindersia dissosperma
- Flindersia ifflaiana
- Flindersia laevicarpa
- Flindersia maculosa
- Flindersia oppositifolia
- Flindersia pimenteliana
- Flindersia schottiana
- Flindersia xanthoxyla
- Rutaceae
- essential oil composition
- geijerene
- pregeijerene
- bicyclogermacrene
- guaiol
- bulnesol
- germacrene D
- β-caryoph- yllene
- caryophyllene oxide
- globulol
- spathulenol
- aromadendrene
- δ-cadinene
- T-cadinol
- T-muurolol
- α-cadinol
- (E,E)-farnesol
- methyl geranate
- α-pinene
- sabinene
- elemol
- α-eudesmol
- β-eudesmol
- γ-eudesmol
