Essential Oil Composition of Three Australian Endemic Species of Darwinia (Myrtaceae)

Abstract

The essential oils from the aerial parts of three rare Australian endemic species of Darwinia have been extracted by hydrodistillation and analyzed by gas chromatography (GC) and gas chromatography coupled to mass spectrometry (GC-MS). In D. procera, myrtenyl acetate (6.1-29.6%), α-pinene (6.9-25.1%), γ-terpinene (6.2-13.6%), bicyclogermacrene (5.5-10.8%) and (E)-nerolidol (3.4-9.7%) were the principal components detected. D. fascicularis ssp. fascicularis produced an oil in which (E)-nerolidol (33.0%), α-pinene (15.1%) and γ-terpinene (10.2%) were the principal components. In D. peduncularis the major constituents were α-pinene (33.5%), γ-terpinene (23.1%) and bicyclogermacrene (6.7%).

Synthesis, odour evaluation and antimicrobial activity of some geranyl acetone and nerolidol analogues

“…Schauer (38.6%), the root oil of Fokienia hodginsii (Dunn) Henry et Thomas (35.5%), the flowers of shampoo ginger (34.9%), rainbow eucalyptus (34.8%), Darwinia fascicularis ssp. fascicularis (33%), Piper hispidum (23.6%), cucumber tree (20%), and orange jessamine (25.7%) . Noticeable content of nerolidol was also reported in the composition of volatiles of an enormous number of essential oils, a modest example of which would be the following reports …”