Leaf essential oils of the genusLeptospermum (Myrtaceae) in eastern Australia. Part 7.Leptospermum petersonii, L. liversidgei and allies

Brophy, Joseph J.; Goldsack, Robert J.; Punruckvong, Acharaporn; Bean, A. R.; Forster, Paul I.; Lepschi, Brendan J.; Doran, J. C.; Rozefelds, Andrew C.

doi:10.1002/1099-1026(200009/10)15:5<342::aid-ffj924>3.0.co;2-v

Cited by 31 publications

(24 citation statements)

References 12 publications

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“…Two principal components of L. juniperinum observed in this study (α-pinene, 21% and 1,8-cineole, 12–20%) were consistent with prior work [1]. Like previous studies [3], two extremes in chemical composition were identified in the L. liversidgei species in this work: chemotype I high in isopulegol (15–33%) and citronellal (19–44%); chemotype II high in neral (21%) and geranial (31%). The monoterpenoid nature of L. polygalifolium wallum observed in this study (α-pinene, 5–32%, β-pinene, 0–7% and 1,8-cineole, 4–13%) was consistent with prior work [4], as was their low concentration of sesquiterpene alcohols (α-eudesmol, 0–3%, β-eudesmol, 0–5% and γ-eudesmol, 0–3%).…”

Section: Resultssupporting

confidence: 91%

“…The range of percentage oil yield of L. polygalifolium wallum observed in this study (0.03–0.5%) was in the lower end of the range previously reported (0.2–0.8%) [4]. Both the L. liversidgei chemotypes examined in this study had percentage oil yields (I - 0.5–1% and II - 0.5%) consistent with the non-chemotype specific L. liversidgei range of oil yield found by Brophy and co-workers (0.3–2.7%) [3]. The percentage oil yields of L. semibaccatum chemotype II, L. speciosum and L. trinervium chemotype I observed in this study (0.06–0.2%, 0.6% and 0.2–0.4%, respectively) are consistent with the ranges previously reported (0.04–0.2% [2], 0.5–1.3% [5] and 0.1–0.4% [2], respectively).…”

Section: Resultssupporting

confidence: 87%

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Essential oils from Leptospermums of the Sunshine Coast and Northern Rivers Regions

Windsor

Brooks

2012

Chemistry Central Journal

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BackgroundAround the turn of this century, the oil yield and chemical composition of Australian Leptospermum species was analysed. Since that time, research has been focused on their use as phytomedicines. The oil yield and composition of essential oils from Australian Leptospermum species directly impacts their commercialisation for medicinal use.ResultsThe essential oils from Leptospermum (L.) juniperinum, L. laevigatum, L. liversidgei, L. polygalifolium, L. semibaccatum, L. speciosum, L. trinervium and L. whitei have been examined from specimens in the Sunshine Coast (Queensland) and Northern Rivers (New South Wales) Regions. Both chemotypes of L. liversidgei were observed. However, only chemotype II of L. semibaccatum and chemotype I of L. trinervium were identified. The only subspecies observed of L. polygalifolium was L. polygalifolium wallum.ConclusionsL. liversidgei chemotypes I and II have the potential for phytomedical use as antibacterial or anti-inflammatory agents. Chemotype I has the potential for use as an insect repellent and chemotype II may provide antifungal activity.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 87%

Essential oils from Leptospermums of the Sunshine Coast and Northern Rivers Regions

Windsor

Brooks

2012

Chemistry Central Journal

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“…Limited work has been done on the biological activity of Leptospermum oil. Citronellal, one of the main components of L. petersonii has been shown to possess antimicrobial activity against a range of microorganisms (Brophy et al, 2000;Hood et al, 2010a;Lee et al, 2008;Park et al, 2007;Somolinos et al, 2009). Leptospermum oil also contains several components and their combined antimicrobial activities have yet to be investigated.…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial activity of essential oils and five terpenoid compounds against Campylobacter jejuni in pure and mixed culture experiments

Kürekçi

Padmanabha

Bishop-Hurley

et al. 2013

International Journal of Food Microbiology

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“…The chemical components of L. petersonii, E. citriodora and M. quinquenervia have been well studied. 8,[21][22] Similar results were obtained in our analysis, although there were some differences in the ratio of chemicals. Ogihara and Takeda 23 previously reported that the essential oil content can vary markedly, depending on growing conditions.…”

Section: Discussionmentioning

confidence: 99%

Antifungal activity of Myrtaceae essential oils and their components against three phytopathogenic fungi

Lee

Kim

Shin

et al. 2008

Flavour & Fragrance J

136

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Commercial plant essential oils obtained from 11 Myrtaceae plant species were tested for their antifungal activity against Phytophthora cactorum, Cryponectria parasitica and Fusarium circinatum. Good antifungal activity against Phytophthora cactorum was achieved with the essential oil derived from Leptospermum petersonii at 28 × 10 −3 mg/ml air concentration. Inhibition rates of Eucalyptus citriodora and Melaleuca quinquenervia were 35.4% and 33.6% at 28 × 10 −3 mg/ml air concentration, respectively. In a test with C. parasitica, inhibition rates of E. citriodora and L. petersonii were 29.4% and 38.5%, respectively. Only L. petersonii essential oil showed antifungal activity against F. circinatum. Analysis by gas chromatography-mass spectrometry led to identification of 16, 15 and 12 compounds, respectively, in the oils of L. petersonii, M. quinquenervia and E. citriodora. The antifungal activity of the identified compounds was tested individually using standard or synthesized compounds. The inhibition rates of citronellol, neral, geraniol and geranial were 100% against P. cactorum at 28 × 10 −3 mg/ml air concentration. In a test with C. parasitica, the inhibition rates of neral and geranial were 61.7% and 68.9% at 28 × 10 −3 mg/ml air concentration.

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Leaf essential oils of the genusLeptospermum (Myrtaceae) in eastern Australia. Part 7.Leptospermum petersonii, L. liversidgei and allies

Cited by 31 publications

References 12 publications

Essential oils from Leptospermums of the Sunshine Coast and Northern Rivers Regions

Essential oils from Leptospermums of the Sunshine Coast and Northern Rivers Regions

Antimicrobial activity of essential oils and five terpenoid compounds against Campylobacter jejuni in pure and mixed culture experiments

Antifungal activity of Myrtaceae essential oils and their components against three phytopathogenic fungi

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