Chemical composition and in vitro antimicrobial activity of the essential oils of two Helichrysum species from Tanzania |
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Authors: | Bougatsos Christos Ngassapa Olipa Runyoro Deborah K B Chinou Ioanna B |
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Affiliation: | Laboratory of Pharmacognosy, Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens, Greece. |
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Abstract: | The chemical composition of the essential oils obtained from the aerial parts of Helichrysum cymosum and H. fulgidum, from Tanzania, were analyzed by GC and GC/MS. A total of sixty-five compounds, representing 92.4% and 88.2% of the two oils, respectively, were identified. trans-Caryophyllene, caryophyllene oxide, beta-pinene, p-cymene, spathulenol and beta-bourbonene were found to be the main components. Furthermore, the oils were tested against six gram (+/-) bacteria and three pathogenic fungi. It was found that the oil of H. fulgidum exhibited significant antimicrobial activity, while the oil of H. cymosum was not active at all. |
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