title: A comparative study of the in vitro antimicrobial activity of tea tree oils s.l. with special reference to the activity of beta-triketones.
abstract: The in vitro antibacterial and antifungal activities of Australian tea tree oil, cajuput oil, niaouli oil, kanuka oil and manuka oil as well as of a beta-triketone complex isolated from manuka oil were investigated in a constituent-oriented study. The compositions of the oils were analysed by capillary GLC and GLC-MS. The MICs for sixteen different microorganisms were determined applying the broth dilution method. Australian tea tree oil showed the best overall antimicrobial effect. The best inhibitory effects on Gram-positive bacteria and dermatophytes were achieved with manuka oil due to its beta-triketone content.
authors.forename: F
authors.initials: F
authors.lastname: Christoph
authors.forename: P M
authors.initials: PM
authors.lastname: Kaulfers
authors.forename: E
authors.initials: E
authors.lastname: Stahl-Biskup
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D005658:Fungi / Q000187:drug effects; D008401:Gas Chromatography-Mass Spectrometry; D066298:In Vitro Techniques; D007659:Ketones / Q000737:chemistry / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D010938:Plant Oils / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D007659:Ketones; D010938:Plant Oils