Composition and antimicrobial activity of the essential oils from flowers of Senecio othonnae, s. racemosus, and s. nemorensis.
The chemical composition of the essential oils of Senecio othonnae, S. racemosus, and S. nemorensis obtained by hydrodistillation of fresh flowers were analysed by GC-FID and GC-MS. A total of seventy-six compounds were identified, constituting over 83.1%, 97.7% and 86.8% of the total oil composition of the flowers of S. othonnae, S. racemosus, and S. nemorensis. The main components of the oils were caryophyllene oxide (18.6%), (E)-beta-farnesene (21.6%), and gamma-curcumene (42.8%), respectively. Sesquiterpene hydrocarbons were the main group of constituents of all three species, forming 34.6%, 73.2%, and 81.8% of the oils, respectively. The oils of S. othonnae, and S. nemorensis showed antimicrobial activity against Bacillus cereus, Staphylococcus aureus, Enterococcus faecalis, and Candida tropicalis, but that of S. racemosus was only active against Candida tropicalis.
Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
Osman
O
Uçüncü
Nuran
N
Kahriman
Salih
S
Terzioğlu
Sengül Alpay
SA
Karaoğlue
Nurettin
N
Yayli
D000890:Anti-Infective Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D002849:Chromatography, Gas; D035264:Flowers / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000032:analysis* / Q000302:isolation & purification* / Q000494:pharmacology; D010936:Plant Extracts / Q000032:analysis* / Q000302:isolation & purification* / Q000494:pharmacology; D012674:Senecio / Q000737:chemistry*; D012717:Sesquiterpenes / Q000302:isolation & purification; D013045:Species Specificity; D014421:Turkey
D000890:Anti-Infective Agents; D009822:Oils, Volatile; D010936:Plant Extracts; D012717:Sesquiterpenes