A Seasonal Variation Study of the Chemical Composition and Antimicrobial Activity of the Essential Oil of Agathosma ovata (Thunb.) Pillans (Rutaceae)

A seasonal variation study was performed on the chemical composition of the essential oil of Agathosma ovata (Rutaceae). In addition, this study looked at how variations may impact the antimicrobial activity of A. ovata. The chemical composition of 10 monthly samples, as determined by GC and GC/MS,...

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Bibliographic Details
Published in:The Journal of essential oil research 2006-01, Vol.18 (sup1), p.30-36
Main Authors: Viljoen, Alvaro M., Moolla, Aneesa, van Vuuren, Sandy F., Başer, K. Hüsnü C., Demirci, Betül, Özek, Temel
Format: Article
Language:English
Subjects:
Agathosma ovata
antimicrobial activity
buchu
essential oil composition
limonene
linalool
myrcene
p-cymene
Rutaceae
sabinene
terpinen-4-ol
α-pinene
α-thujene
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Summary:A seasonal variation study was performed on the chemical composition of the essential oil of Agathosma ovata (Rutaceae). In addition, this study looked at how variations may impact the antimicrobial activity of A. ovata. The chemical composition of 10 monthly samples, as determined by GC and GC/MS, were found to differ qualitatively and quantitatively and the analysis resulted in the identification of 144 compounds. Sabinene was the major compound in the oil and ranged between 25-44% over the year. The antimicrobial activity was evaluated using the minimum inhibitory concentration (MIC) method on four pathogens, i.e. Staphylococcus aureus, Bacillus cereus, Klebsiella pneumoniae and Candida albicans. Most of the samples had MIC values of 8 mg/mL. The activity for Staphylococcus aureus showed the greatest fluctuation (1.5-14 mg/mL) over the seasonal period.
ISSN:1041-2905
2163-8152
DOI:10.1080/10412905.2006.12067116