title: Analysis of the essential oil from Gaillardia pulchella Foug. and its antioxidant activity.
abstract: The essential oil from Gaillardia pulchella Foug. flowers was obtained by hydrodistillation and its chemical composition was analyzed by gas chromatography-mass spectrometry (GC-MS). Twenty-eight compounds representing 92.63% of the essential oil were identified, of which the most prominent were n-Hexadecanoic acid (26.90%), Phytol (7.58%) and Cyclopropaneoctanoic acid, 2-[[2-[(2-ethylcyclopropyl) methyl] cyclopropyl] methyl]-, methyl ester (6.73%). Meanwhile, antioxidant activity of the essential oil was tested. The essential oil showed certain antioxidant activity in 1,1-diphenyl-2-picrylhydrazyl (DPPH) with an EC₅₀ of 70.95 μg/ml. This is the first report on the essential oil of this particular species. Its bioactivities warrant further studies.
authors: Department of Pharmaceutical, Marine College, Shandong University at Weihai, Weihai, China.
authors: Xiao Tong
authors: XT
authors: Yao
authors: Pei Xue
authors: PX
authors: Ling
authors: Shan
authors: S
authors: Jiang
authors: Peng Xiang
authors: PX
authors: Lai
authors: Chen Gang
authors: CG
authors: Zhu
mesh_terms: D000975:Antioxidants / Q000032:analysis* / Q000737:chemistry; D019659:Asteraceae / Q000737:chemistry*; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry
chemical_list: D000975:Antioxidants; D009822:Oils, Volatile