1,8-桉叶素型互叶白千层枝叶储存中精油质量的变化  

Changes of Essential Oil Quality During Storage of Twigs and Leaves of Melaleuca alternifolia Containing 1,8-Cineole

作　　者：陈海燕[1] 李桂珍[1,2] 唐伟 杨漓 梁忠云[1,2] CHEN Haiyan;LI Guizhen;TANG Wei;YANG Li;LIANG Zhongyun(Guangxi Zhuang Autonomous Region Forestry Research Institute,Nanning,Guangxi 530002,China;Guangxi Key Laboratory of Special Non-wood Forest Cultivation&Utilization,Nanning,Guangxi 530002,China;Guangxi Hengjie Agricultural Technology Development Co.Ltd.,Qinzhou,Guangxi 535000,China)

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责任公司,广西钦州535000

出　　处：《热带农业科学》2021年第7期80-83,共4页Chinese Journal of Tropical Agriculture

基　　金：广西科技基地和人才专项(No.桂科AD18281083);广西特色经济林培育与利用重点实验室自主课题(No.19-A-04-02)。

摘　　要：采用水蒸气蒸馏法从1,8-桉叶素型互叶白千层枝叶中提取精油,按照ISO4730:2017标准分析精油理化指标和主要成分,砍伐后的枝叶在储存过程中测定3次,每月1次,追踪精油质量变化情况。结果表明,1,8-桉叶素型互叶白千层枝叶砍伐1个月后精油率损失11.43%以上,2个月内精油理化指标和主要成分1,8-桉叶素,α-松油醇,苧烯,α-蒎烯相对保持稳定,符合DB45/T 889—2012标准,3个月后精油的溶混度不合格。生产上应合理安排原料砍伐并及时加工。Main components and physical and chemical indicators of essential oil obtained from the twigs and leaves of Melaleuca alternifoli containing 1,8-cineole by steam distillation were analyzed according to ISO4730:2017 standard.The essential oil was extracted and determined from the twigs and leaves fresh cut and stored,three times during storage,once a month in order to track the quality changes of the essential oil extracted.The results showed that the loss of essential oil rate is more than 11.43%after one month of storage of the cut twigs and leaves,and that the physical and chemical indexes of the essential oil and its main components(1,8-eucalyptin,α-terpinol,Limonene andα-pinene)remained relatively stable within two months of storage of the cut twig and leaves,conforming to DB45/T889—2012 standard.The miscibility of the essential oil extracted from the cut twigs and leaves stored for more than 3 months failed to live up to the standard.Therefore,the twigs and leaves should be cut for timely extraction of the essential oil.

关 键 词：白千层 精油 1 8-桉叶素 

分 类 号：S792.99[农业科学—林木遗传育种]