The chemical composition of Euphorbia fischeriana essential oil from north China was analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry(GC/MS), 43 components were identified. β- Eudesmol (18.22%), p-Menth-8-en-2-ol (9.36%), Caryophyllene oxide (8.61%), β-Selinenol (6.83%), Cedrol (4.30%) and β-Selinene (4.21%) were the main components in the oil of E. fischeriana. The antioxidant activity of E. fischeriana essential oil determinated spectrophotometrically with 2,2-Diphenyl-1-Picrylhydrazyl (DPPH), indicated an IC50 value of 57.24 μg/ml.
Key words: Euphorbia fischeriana, essential oil, antioxidant activity.
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