In order to investigate effects of distillation methods on quality of Baeckea frutescens essential oil,five distillation methods were used to extract essential oils from B.frutescens leaves and branches,including dis-tillation in water,distillation above water,diffusion distillation,re-distillation and simultaneous extraction dis-tillation,yields and components of essential oils were analyzed.Results showed that yield of essential oil by re-distillation was the highest.When using re-distillation to extract essential oil,yield was 1.101%based on mate-rial to water ratio of 8∶1 and distillation time of 2 h.In essential oil extracted by re-distillation,contents of β-pinene,4-terpineol,1,8-cineole and linalool met characteristic component requirements in Guangxi local stan-dard DB45/T 1064-2014.Results could provide references for industrial productions of B.frutescensessential oils.
essential oil from Baeckea frutescensdistillationyieldcomponent
国家科技期刊平台
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