Chemical composition and in vitro antimicrobial activity of the essential oils of two Helichrysum species from Tanzania.
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.
Bougatsos
Christos
C
Laboratory of Pharmacognosy, Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens, Greece.
Ngassapa
Olipa
O
Runyoro
Deborah K B
DK
Chinou
Ioanna B
IB
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002849:Chromatography, Gas; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D036562:Helichrysum / Q000737:chemistry* / Q000145:classification; D013058:Mass Spectrometry; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D013636:Tanzania
D000900:Anti-Bacterial Agents; D009822:Oils, Volatile