title: Volatile constituents and antibacterial screening of the essential oil of Chenopodium ambrosioides L. growing in Nigeria.
abstract: The essential oil of the aerial parts of Chenopodium ambrosioides L. has been isolated by hydrodistillation and analyzed using GC-MS. The major components were found to be alpha-terpinene (63.1%), p-cymene (26.4%) and ascaridole (3.9%). The oil displayed no antibacterial activity against either Gram-positive bacteria Bacillus cereus or Staphylococcus aureus, or the Gram-negative bacterium Escherichia coli (MIC=1250 microg/mL). A cluster analysis of C. ambrosioides essential oils reveals at least seven distinct chemotypes: ascaridole, alpha-terpinene, alpha-pinene, p-cymene, carvacrol, alpha-terpinyl acetate, and limonene.
authors.affiliation: Department of Chemistry, Lagos State University, P.M.B 001, Ojo, Lagos, Nigeria. sunnyconcept2007@yahoo.com
authors.forename: Moses S
authors.initials: MS
authors.lastname: Owolabi
authors.forename: Labunmi
authors.initials: L
authors.lastname: Lajide
authors.forename: Matthew O
authors.initials: MO
authors.lastname: Oladimeji
authors.forename: William N
authors.initials: WN
authors.lastname: Setzer
authors.forename: Maria C
authors.initials: MC
authors.lastname: Palazzo
authors.forename: Rasaq A
authors.initials: RA
authors.lastname: Olowu
authors.forename: Akintayo
authors.initials: A
authors.lastname: Ogundajo
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D027462:Chenopodium / Q000737:chemistry* / Q000145:classification; D016000:Cluster Analysis; D035264:Flowers / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D008826:Microbial Sensitivity Tests; D009549:Nigeria; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D009822:Oils, Volatile