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Comparative study on the in vitro antibacterial activity of Australian tea tree oil, cajuput oil, niaouli oil, manuka oil, kanuka oil, and eucalyptus oil.
Pharmazie. 1999 Jun; 54(6):460-3.P

Abstract

To compare the antibacterial activity of the Australian tea tree oil (TTO) with various other medicinally and commercially important essential myrtaceous oils (cajuput oil, niaouli oil, kanuka oil, manuka oil, and eucalyptus oil) the essential oils were first analysed by GC-MS and then tested against various bacteria using a broth microdilution method. The highest activity was obtained by TTO, with MIC values of 0.25% for Enterobacter aerogenes, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Salmonella choleraesuis, Shigella flexneri, Bacillus subtilis, Listeria monocytogenes, Staphylococcus aureus, S. saprophyticus, and S. xylosus. It is noteworthy that manuka oil exhibited a higher activity than TTO against gram-positive bacteria, with MIC values of 0.12%. Both TTO and manuka oil also demonstrated a very good antimicrobial efficacy against various antibiotic-resistant Staphylococcus species. Pseudomonas aeruginosa was resistant to all essential oils tested, even at the highest concentration of 4%.

Authors+Show Affiliations

Harkenthal M
Institute of Pharmaceutical Biology, University of Heidelberg, Germany.
Reichling J
No affiliation info available
Geiss HK
No affiliation info available
Saller R
No affiliation info available

MeSH

Anti-Bacterial AgentsGas Chromatography-Mass SpectrometryGram-Negative BacteriaGram-Positive BacteriaMicrobial Sensitivity TestsOils, VolatilePlant OilsPlants, Medicinal

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

10399193

Citation

Harkenthal, M, et al. "Comparative Study On the in Vitro Antibacterial Activity of Australian Tea Tree Oil, Cajuput Oil, Niaouli Oil, Manuka Oil, Kanuka Oil, and Eucalyptus Oil." Die Pharmazie, vol. 54, no. 6, 1999, pp. 460-3.
Harkenthal M, Reichling J, Geiss HK, et al. Comparative study on the in vitro antibacterial activity of Australian tea tree oil, cajuput oil, niaouli oil, manuka oil, kanuka oil, and eucalyptus oil. Pharmazie. 1999;54(6):460-3.
Harkenthal, M., Reichling, J., Geiss, H. K., & Saller, R. (1999). Comparative study on the in vitro antibacterial activity of Australian tea tree oil, cajuput oil, niaouli oil, manuka oil, kanuka oil, and eucalyptus oil. Die Pharmazie, 54(6), 460-3.
Harkenthal M, et al. Comparative Study On the in Vitro Antibacterial Activity of Australian Tea Tree Oil, Cajuput Oil, Niaouli Oil, Manuka Oil, Kanuka Oil, and Eucalyptus Oil. Pharmazie. 1999;54(6):460-3. PubMed PMID: 10399193.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative study on the in vitro antibacterial activity of Australian tea tree oil, cajuput oil, niaouli oil, manuka oil, kanuka oil, and eucalyptus oil. AU - Harkenthal,M, AU - Reichling,J, AU - Geiss,H K, AU - Saller,R, PY - 1999/7/10/pubmed PY - 1999/7/10/medline PY - 1999/7/10/entrez SP - 460 EP - 3 JF - Die Pharmazie JO - Pharmazie VL - 54 IS - 6 N2 - To compare the antibacterial activity of the Australian tea tree oil (TTO) with various other medicinally and commercially important essential myrtaceous oils (cajuput oil, niaouli oil, kanuka oil, manuka oil, and eucalyptus oil) the essential oils were first analysed by GC-MS and then tested against various bacteria using a broth microdilution method. The highest activity was obtained by TTO, with MIC values of 0.25% for Enterobacter aerogenes, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Salmonella choleraesuis, Shigella flexneri, Bacillus subtilis, Listeria monocytogenes, Staphylococcus aureus, S. saprophyticus, and S. xylosus. It is noteworthy that manuka oil exhibited a higher activity than TTO against gram-positive bacteria, with MIC values of 0.12%. Both TTO and manuka oil also demonstrated a very good antimicrobial efficacy against various antibiotic-resistant Staphylococcus species. Pseudomonas aeruginosa was resistant to all essential oils tested, even at the highest concentration of 4%. SN - 0031-7144 UR - https://www.unboundmedicine.com/medline/citation/10399193/Comparative_study_on_the_in_vitro_antibacterial_activity_of_Australian_tea_tree_oil_cajuput_oil_niaouli_oil_manuka_oil_kanuka_oil_and_eucalyptus_oil_ DB - PRIME DP - Unbound Medicine ER -