Occurrence of Maaliol, Elemol, and Globulol in Some Australian Essential Oils

Hellyer, RO

doi:10.1071/ch9620157

Cited by 17 publications

(15 citation statements)

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“…16 Excluding the data presented above, of the species previously examined Austromatthaea elegans contains benzyl benzoate and benzyl salicylate as principal components, 17 Doryphora aromatica contains terpenes, while Doryphora sassafras contains safrole as its principal component. 4 Hedycarya angustifolia contains elemol and hedycaryol as its major components, 18,19 while H. loxocarpa contains elemol and the three eudesmols as its principal components (Brophy unpublished). Daphnandra repandula contains bicyclogermacrene and spathulenol as principal components (Brophy, unpublished).…”

Section: Resultsmentioning

confidence: 98%

Essential oils of some Australian monimiaceae

Brophy

Forster²,

Goldsack

1998

Flavour Fragr. J.

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The leaf oil of Dryadodaphne sp. (Mt. Lewis B.P. Hyland RFK1496) contained d-cadinene (10.7%), globulol (4.6%) and T-cadinol (3.7%) as major compounds. In the bark and wood, the major compounds were guaiol and bulnesol, with these compounds being approximately twice as prevalent in the bark as in wood. In Levieria acuminata, the principal component of the leaf oil was n-dodecanal (28%), with d-cadinene (5.8%) and calamenene (5.7%) being the principal sesquiterpenes. Kibara rigidifolia produced a complex leaf oil rich in sesquiterpenes, which also contained (Z)-b-ocimene (3±12%) and (E)-b-ocimene (1.5%) as principal monoterpenes. The principal sesquiterpenes were bicyclogermacrene, germacrene-B, guaiol and spathulenol. #

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Section: Resultsmentioning

confidence: 98%

Essential oils of some Australian monimiaceae

Brophy

Forster²,

Goldsack

1998

Flavour Fragr. J.

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“…His work was later published by his own protégé R.O. Hellyer [ 33 ], but unfortunately there was some confusion in the labelling of Penfold’s samples, causing Hellyer to report the chemistry of the wrong species, which will be corrected in this report.…”

Section: Resultsmentioning

confidence: 99%

“…Due to the taxonomic revisions since that time it is impossible to know of the actual identities of the specimens examined by Bosisto but our data ( Table 2 ) include a specimen of P. rotundifolia (ROA-2a) that is chemically very similar to Eucalyptus globulus Labill. [ 33 ], which was something that Bosisto had plenty of already.…”

Section: Resultsmentioning

confidence: 99%

“…In 1962, Hellyer mistook this essential oil as derived from Eriostemon myoporoides DC (now Philotheca myoporoides (DC) Bayly.) and claimed that, after many years of standing on a shelf in Penfold’s laboratory, the essential oil started to grow crystals that Penfold believed to be ledol, due to the similarity in shape and appearance, but they were in fact made from maaliol [ 33 ]. However, Penfold had already published his study of E. myoporoides ( P. myoporoides ) much earlier, in which he correctly described the essential oil composition, declaring no traces of maaliol [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

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Prostanthera (Lamiaceae) as a ‘Cradle of Incense’: Chemophenetics of Rare Essential Oils from Both New and Forgotten Australian ‘Mint Bush’ Species

Sadgrove

Padilla-González

Telford

et al. 2020

Plants

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The highly aromatic Australian mint bushes from the genus Prostanthera Labill. produce a high yield of essential oil on hydrodistillation. Together with its rich history, horticultural potential, iconic flowers, and aromatic leaves, it achieves high ornamental and culinary value. Species in the genus express highly diverse and chemically unique essential oils that demonstrate intra- and inter-specific patterns that have inspired taxonomic reinterpretation for over a hundred years. Previous studies have conveyed that phenoplastic expression of volatiles creates chemotypes within taxa, adding complexity to chemophenetic exploration. The current study chemically characterised essential oils from 64 highly aromatic specimens, representative of 25 taxa, giving yields as high as >2% g/g. The chemical profiles of essential oils are diverse, but generally include 1,8-cineole and signatory compounds such as sesquiterpene oxides, caryophyllene oxide, kessane and cis-dihydroagarofuran; sesquiterpene alcohols, globulol, epiglobulol, maaliol, prostantherol, spathulenol and ledol; and monoterpene derivatives of common scaffolds, borneol, bornyl acetate, bornanone, linalool and linalyl acetate. As in previous studies, analysis of chemical data confirms that the chemistry strongly agrees with taxonomic classifications. Importantly, as in classical taxonomy, the current chemical study complemented morphological analysis but conveys chemovariation, obscuring the taxonomic agreement. Nevertheless, variation within taxa may be due to environmental factors, meaning that cultivation of species in gardens will create different chemical profiles as compared to those published here.

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“…This tricyclic sesquiterpene alcohol was formerly only known to occur in one other Prostanthera species, P. prunellioides R.Br. [126] at approximately 60%. However, it may also be known from P. ringens Benth.…”

Section: Phytochemical and Chemotaxonomic Investigationsmentioning

confidence: 99%

A Contemporary Introduction to Essential Oils: Chemistry, Bioactivity and Prospects for Australian Agriculture

2015

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This review is a comprehensive introduction to pertinent aspects of the extraction methodology, chemistry, analysis and pharmacology of essential oils, whilst providing a background of general organic chemistry concepts to readers from non-chemistry oriented backgrounds. Furthermore, it describes the historical aspects of essential oil research whilst exploring contentious issues of terminology. This follows with an examination of essential oil producing plants in the Australian context with particular attention to Aboriginal custom use, historical successes and contemporary commercial prospects. Due to the harsh dry environment of the Australian landmass, particularly to the cyclical climatic variation attendant upon repeated glaciation/post-glaciation cycles, the arid regions have evolved a rich assortment of unique endemic essential oil yielding plants. Though some of these aromatic plants (particularly myrtaceous species) have given birth to commercially valuable industries, much remains to be discovered. Given the market potential, it is likely that recent discoveries in our laboratory and elsewhere will lead to new product development. This review concludes with an emphasis on the use of chemotaxonomy in selection of commercially viable cultivar chemotypes from the Australian continent. Finally, drawing largely from our own results we propose a list of Australian endemic species with novel commercial potential. OPEN ACCESSAgriculture 2015, 5 49

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Occurrence of Maaliol, Elemol, and Globulol in Some Australian Essential Oils

Cited by 17 publications

References 0 publications

Essential oils of some Australian monimiaceae

Essential oils of some Australian monimiaceae

Prostanthera (Lamiaceae) as a ‘Cradle of Incense’: Chemophenetics of Rare Essential Oils from Both New and Forgotten Australian ‘Mint Bush’ Species

A Contemporary Introduction to Essential Oils: Chemistry, Bioactivity and Prospects for Australian Agriculture

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