Publications serve as the concrete art form for the scientist. It is his modus operandi. Authorship is akin to success and achievement. It cannot and should not deteriorate into a bargaining tool or commodity.
Van Vuuren, S.F., Docrat, Y., Kamatou, G.P.P., Viljoen, A.M. 2014. Essential oil composition and antimicrobial interactions of understudied tea tree species. South African Journal of Botany 92: 7–14.
essential oil composition of three Myrtaceous species (Leptospermum petersonii, L. scoparium and Kunzea ericoides) belonging to the tea tree group were analysed
using gas chromatography coupled to mass spectrometry (GC-MS). The major
compounds determined from the mean ± SD of
the monthly samples collected for one calendar year in L. petersonii are citronellal (11.4±4.3%), citronellol (17.5±7.1%),
neral (19.7±1.6%) and geranial (34.7±3.3%). The major compounds in L. scoparium are eudesma-4(14)-11-diene(11.6±2.4%), α-selinene(10.4±2.3%) and (E)-methyl
cinnamate (12.6±3.8%). The major compounds in K. ericoides are α-pinene (37.6±6.3%)
and p-cymene (13.5±4.1%). The
essential oils show some promising antimicrobial activity against selected
micro-organisms when investigated using the minimum inhibitory concentration
assay. Highest sensitivities were noted for the Brevibacteria (lowest
MIC value of 0.06 mg/ml), a genus
associated with foot odour. When
the different essential oils were combined in various ratios and tested againstStaphylococcus aureus, Pseudomonas
aeruginosa and Candida albicans,
a predominantly additive effect was noted.