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2021
Journal article
The Diversity of Volatile Compounds in Australia’s Semi-Desert Genus Eremophila (Scrophulariaceae).
Australia’s endemic desert shrubs are commonly aromatic, with chemically diverse terpenes and phenylpropanoids in their headspace profiles. Species from the genus Eremophila (Scrophulariaceae ex. Myoporaceae) are the most common, with 215 recognised taxa and many more that have not yet been described, widely spread across the arid parts of the... -
2020
Journal article
Southern Africa as a ‘cradle of incense’ in wider African aromatherapy.
The modern paradigm of aromatherapy is based on in vitro assays of pure volatile organic compounds (as an essential oil), with activity at non-clinically significant concentrations. Yet traditional use of aromatic species did not involve pure essential oils because hydrodistillation was only invented in relatively recent times (estimated 1200 AD).... -
2019
Journal article
Volatiles from African species of Croton (Euphorbiaceae), including new diterpenes in essential oil from Croton gratissimus
The chemistry of essential oils from the leaves of three African species of Croton (C. gratissimus, C. pseudopulchellus and C. sylvaticus) is comprehensively characterised. Two new volatile diterpenes were isolated from C. gratissimus and the structures assigned using 1D and 2D NMR. One is a furanyl-halimane methyl ester (1) assigned...