title: Analysis of essential oils from Voacanga africana seeds at different hydrodistillation extraction stages: chemical composition, antioxidant activity and antimicrobial activity.
abstract: In this study, essential oils from Voacanga africana seeds at different extraction stages were investigated. In the chemical composition analysis, 27 compounds representing 86.69-95.03% of the total essential oils were identified and quantified. The main constituents in essential oils were terpenoids, alcohols and fatty acids accounting for 15.03-24.36%, 21.57-34.43% and 33.06-57.37%, respectively. Moreover, the analysis also revealed that essential oils from different extraction stages possessed different chemical compositions. In the antioxidant evaluation, all analysed oils showed similar antioxidant behaviours, and the concentrations of essential oils providing 50% inhibition of DPPH-scavenging activity (IC50) were about 25 mg/mL. In the antimicrobial experiments, essential oils from different extraction stages exhibited different antimicrobial activities. The antimicrobial activity of oils was affected by extraction stages. By controlling extraction stages, it is promising to obtain essential oils with desired antimicrobial activities.
authors: a Department of Pharmaceutical Engineering , College of Chemistry and Chemical Engineering, Central South University , Changsha 410083 , Hunan , P.R. China.
authors: Xiong
authors: X
authors: Liu
authors: Dongliang
authors: D
authors: Yang
authors: Jiajia
authors: J
authors: Liu
authors: Na
authors: N
authors: Ren
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry* / Q000302:isolation & purification; D016166:Free Radical Scavengers / Q000737:chemistry* / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry; D012639:Seeds / Q000737:chemistry*; D036902:Voacanga / Q000737:chemistry*
chemical_list: D000890:Anti-Infective Agents; D016166:Free Radical Scavengers; D009822:Oils, Volatile; D010936:Plant Extracts; D010938:Plant Oils
keywords: Voacanga africana seeds; antimicrobial activity; antioxidant activity; chemical composition; essential oils