Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/6745
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dc.contributor.authorSadgrove, Nicholasen
dc.contributor.authorSmith, Joshua Eachanen
dc.contributor.authorAlter, Danielen
dc.contributor.authorWatson, Kennethen
dc.contributor.authorTucker, Daviden
dc.contributor.authorJones, Graham Len
local.source.editorEditor(s): Professor Carlo Bicchi and Professor Patrizia Rubioloen
dc.date.accessioned2010-10-22T08:32:00Z-
dc.date.issued2009-
dc.identifier.citation40th International Symposium on Essential Oils (ISEO) Programme and Book of Abstracts, p. 43-43en
dc.identifier.urihttps://hdl.handle.net/1959.11/6745-
dc.description.abstractEssential oils from the Australian Aboriginal medicinal plant 'Eremophila longifolia' (emu bush) were characterised using GC/MS and NMR, and antimicrobial capacity investigated using disc diffusion and broth dilution. Leaves were collected from various locations within New South Wales (NSW, Australia) and hydro-distilled for volatile leaf oils. Overall yield and oil constitution differed markedly according to the geographical region from which the plants were collected. 'E. longifolia' demonstrated a variety of chemotypes not yet recognised. Four further chemotypes are now recognised within NSW, in addition to the two previously characterised from other regions of Australia; the Northern Territory (NT) and the Murchison district in Western Australia (WA). Characterisation of NSW chemotypes revealed that here 'E. longifolia' does not produce the carcinogenic volatile compound, safrole, as previously described in the leaf oil from Murchison specimens (WA). Two separate chemotypes within NSW yielded oil as high as 7% w/w and 3.5% w/w consisting mostly of iso-menthone (70-90%) and karahanaenone (≈80%) respectively; marking these as the most abundant natural sources of these compounds so far described [3,4,5]. The two remaining chemotypes had a much lower yield, 0.2 and 0.7%, and were more similar to the chemotype found in the NT; leaf oils consisting of limonene (≈20%) and borneol (20-30%) respectively. Antimicrobial assays of volatile oils from the four chemotypes revealed a moderate to high antimicrobial capacity, varying with species and chemotype. Traditional (location specific) indigenous applications of the oils are consistent with these results. The essential oil from 'E. longifolia' may thus be a likely candidate for further investigation into cosmeceutical use addressing a similar market niche to that already successfully occupied by the essential oil of 'Melaleuca alternifolia' (tea tree oil) and more recently 'Backhousia citriodora' (lemon myrtle oil). Further investigations (wound healing, anti-inflammatory and cultivar chemotype requirements) are in progress.en
dc.languageenen
dc.publisherUniversity of Turinen
dc.relation.ispartof40th International Symposium on Essential Oils (ISEO) Programme and Book of Abstractsen
dc.titleChemical characterisation and antimicrobial capacity of essential oils from 'Eremophila longifolia' (F. Muell) (Myoporaceae): an indigenous Australian medicinal plant with high geographic chemovariabilityen
dc.typeConference Publicationen
dc.relation.conferenceISEO 2009: 40th International Symposium on Essential Oilsen
dc.subject.keywordsOrganic Chemistryen
local.contributor.firstnameNicholasen
local.contributor.firstnameJoshua Eachanen
local.contributor.firstnameDanielen
local.contributor.firstnameKennethen
local.contributor.firstnameDaviden
local.contributor.firstnameGraham Len
local.subject.for2008030599 Organic Chemistry not elsewhere classifieden
local.subject.seo2008920301 Aboriginal and Torres Strait Islander Health - Determinants of Healthen
local.profile.schoolScience and Technologyen
local.profile.schoolHuman Biology and Physiologyen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolAdministrationen
local.profile.schoolSchool of Science and Technologyen
local.profile.schoolSchool of Science and Technologyen
local.profile.emailnsadgrov@une.edu.auen
local.profile.emailjsmith38@une.edu.auen
local.profile.emaildalter@une.edu.auen
local.profile.emailkwatson2@une.edu.auen
local.profile.emaildtucker1@une.edu.auen
local.profile.emailgjones2@une.edu.auen
local.output.categoryE3en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20091028-11148en
local.date.conference6th - 9th September, 2009en
local.conference.placeSavigliano, Italyen
local.publisher.placeTurin, Italyen
local.format.startpage43en
local.format.endpage43en
local.title.subtitlean indigenous Australian medicinal plant with high geographic chemovariabilityen
local.contributor.lastnameSadgroveen
local.contributor.lastnameSmithen
local.contributor.lastnameAlteren
local.contributor.lastnameWatsonen
local.contributor.lastnameTuckeren
local.contributor.lastnameJonesen
dc.identifier.staffune-id:nsadgroven
dc.identifier.staffune-id:jsmith38en
dc.identifier.staffune-id:dalteren
dc.identifier.staffune-id:kwatson2en
dc.identifier.staffune-id:dtucker1en
dc.identifier.staffune-id:gjones2en
local.profile.orcid0000-0002-6435-1542en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:6906en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleChemical characterisation and antimicrobial capacity of essential oils from 'Eremophila longifolia' (F. Muell) (Myoporaceae)en
local.output.categorydescriptionE3 Extract of Scholarly Conference Publicationen
local.relation.urlhttp://www.iseo2009.unito.it/en
local.conference.detailsISEO 2009: 40th International Symposium on Essential Oils, Savigliano, Italy, 6th - 9th September, 2009en
local.search.authorSadgrove, Nicholasen
local.search.authorSmith, Joshua Eachanen
local.search.authorAlter, Danielen
local.search.authorWatson, Kennethen
local.search.authorTucker, Daviden
local.search.authorJones, Graham Len
local.uneassociationUnknownen
local.year.published2009en
local.date.start2009-09-06-
local.date.end2009-09-09-
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School of Environmental and Rural Science
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