title: Chemical compositions of essential oils from Xyloselinum vietnamense and X. selinum leonidii.
abstract: The chemical compositions of essential oils obtained by hydrodistillation from leaves and stems of Xyloselinum vietnamense and X. leonidii, two new species belonging to the family Apiaceae, were analyzed by GC-MS. The major components in both species were sabinene, alpha- and beta-pinene, myrcene, beta-phellandrene, (Z)-beta-ocimene, and terpinen-4-ol. The monoterpene sabinene was most abundant in the leaves of X. vietnamense (75.0%). These compounds might be considered as chemotaxonomic markers of Xyloselinum species. In the DPPH radical scavenging assay, all four essential oils showed moderate activity, while the water extracts exhibited stronger effects. The strong DPPH scavenging activity of the water residues of X. vietnamens and X. leonidii might be due to their phenolic components. This paper is the first report on the chemical compositions and antioxidant activity of X. vietnamens and X. leonidii.
authors.affiliation: Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Hanoi, Vietnam.
authors.forename: Huy Thai
authors.initials: HT
authors.lastname: Tran
authors.forename: Sinh Khang
authors.initials: SK
authors.lastname: Nguyen
authors.forename: Thi Hien
authors.initials: TH
authors.lastname: Nguyen
authors.forename: Minh Hoi
authors.initials: MH
authors.lastname: Tran
authors.forename: Tien Dat
authors.initials: TD
authors.lastname: Nguyen
mesh_terms: D000975:Antioxidants / Q000737:chemistry; D019661:Apiaceae / Q000737:chemistry*; D001713:Biphenyl Compounds / Q000737:chemistry; D016166:Free Radical Scavengers / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry; D010851:Picrates / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D009822:Oils, Volatile; D010636:Phenols; D010851:Picrates; C004931:1,1-diphenyl-2-picrylhydrazyl