蒸馏时间对1,8-桉叶素型互叶白千层挥发油得率和成分的影响  

Effect of Distillation Time on Yield and Composition of Volatile Oil of 1,8-Cineole Type Melaleuca alternifolia

作　　者：陈海燕[1,2] 李桂珍 秦荣秀[1] 唐伟 梁忠云[1,2] CHEN Haiyan;LI Guizhen;QIN Rongxiu;TANG Wei;LIANG Zhongyun(Guangxi Zhuang Autonomous Region Forestry Research Institute,Nanning Guangxi 530002;Guangxi Special Economic Forest Cultivation and Utilization Key Laboratory,Nanning Guangxi 530002;Guangxi Hengjie Agricultural Technology Development Co.,Ltd.,Qinzhou Guangxi 535000)

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002 [2]广西特色经济林培育与利用重点实验室,广西南宁530002 [3]广西恒杰农业科技发展有限公司,广西钦州535000

出　　处：《现代农业科技》2020年第21期228-230,共3页Modern Agricultural Science and Technology

基　　金：广西林业科研与推广项目(gl2018kt15);广西科技基地和人才专项(桂科AD18281083);广西特色经济林培育与利用重点实验室自主课题(19-A-04-02);广西林业科学研究院基本科研业务费(林科201821号)。

摘　　要：本文采用水蒸气蒸馏法从1,8-桉叶素型互叶白千层中提取精油,采集不同蒸馏时间的挥发油,利用气相色谱-质谱联用(GC-M S)对挥发油的化学成分进行定性,参照ISO 4730:2017标准用气相色谱进行定量分析,研究蒸馏时间对1,8-桉叶素型互叶白千层挥发油得率和成分的影响。结果表明,随着蒸馏时间的延长,1,8-桉叶素型互叶白千层叶挥发油相对得率降低,蒸馏2 h后,96%以上的挥发油已被蒸出,精油主要成分1,8-桉叶素(70.537%)、α-松油醇(10.222%)、柠檬烯(8.429%)、α-蒎烯(3.080%)、β-月桂烯(2.030%)、4-松油醇(1.351%)含量变化不大。1,8-桉叶素型互叶白千层蒸馏时间以2 h为宜。This paper used steam distillation to extract essential oils from 1,8-cineole type Melaleuca alternifolia,collected volatile oils with different distillation times,and used gas chromatography mass spectrometry(GC-MS)to qualitatively determine the chemical composition of the volatile oils according to ISO 4730:2017 standard,gas chromatography was used for quantitative analysis,the effect of distillation time on the yield and composition of the volatile oil of 1,8-cineole type Melaleuca alternifolia was studied.The results showed that with the extension of the distillation time,the relative yield of volatile oil of 1,8-cineole type Melaleuca alternifolia decreased.After 2 hours of distillation,more than 96%of the volatile oil had been steamed out.The main components of the essential oil were 1,8-cineole(70.537%),α-terpineol(10.222%),limonene(8.429%),α-pinene(3.080%),β-myrcene(2.030%),4-terpineol(1.351%),the content of these components had little change.The optimum distillation time of 1,8-cineole type Melaleuca alternifolia was 2 h.

关 键 词：互叶白千层 挥发油 蒸馏时间 1 8-桉叶素 

分 类 号：TQ420.67[化学工程]