文献类型：期刊文献

中文题名：分子蒸馏法纯化宽叶缬草挥发油中的乙酸龙脑酯

英文题名：Purification of bornyl acetate in volatile oil of valeriana officinalis L.var.latifolia Miq by molecular distillation

作者：李雄 吕庆银 李岑 吴威 赵伟 张振

第一作者：李雄

机构：[1]贵州大学酿酒与食品工程学院;[2]贵州理工学院制药工程学院

第一机构：贵州大学酿酒与食品工程学院,贵州贵阳550025

年份：2017

卷号：38

期号：5

起止页码：274-278

中文期刊名：食品工业科技

外文期刊名：Science and Technology of Food Industry

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：贵州省科学技术项目(黔科合J字[2011]3004)

语种：中文

中文关键词：缬草挥发油;分子蒸馏;乙酸龙脑酯;响应面法

外文关键词：the volatile oil in valeriana officinalis L.var. latifolia Miq ; molecular distillation ; bornyl acetate ; response surface methodology

摘要：采用分子蒸馏法对缬草挥发油进一步纯化。在单因素实验的基础上,通过响应面法优化分子蒸馏技术纯化缬草挥发油所需温度、进料速度、刮膜转速的最佳工艺参数,采用弹性石英毛细管柱TR-5,在检测器温度为250℃,气化温度为250℃,分流比为50∶1条件下进行GC法测定,并用内标法定量。考察蒸发温度,刮膜速率,进料速度等对缬草挥发油的主要成分乙酸龙脑酯的含量的影响。结果表明:最佳工艺条件为:进料速度为82 m L/h,蒸馏温度68℃,刮膜转速188 r/min,乙酸龙脑酯的质量分数为77.46%。结论:通过分子蒸馏法可得到比传统的水蒸气蒸馏法所提挥发油的有效成分质量分数要高,在挥发油提纯工业化生产方面有很好的应用前景。
Molecular distillation was used for the further purification of the volatile oil from roots of valeriana officinalis L.var. latifolia Miq.The best process parameters, including temperature, feed rate, and scraping rate, of molecular distillation technique for separating the volatile oil were studied by response surface methodology based on single factor experiment.The content was detected by GC under the conditions of elastic quartz capillary column TR - 5, detector temperature 250 ℃, gasification temperature 250 %, distributary refer 50： 1. The optimal extraction processing parameters were material-feeding rate of 82 mL/h, distillation temperature of 68 ℃ and scraping rate of 188 r/rain.Under the optimal processing conditions, the quality of volatile oil was markedly improved, and the content of bornyl acetate was 77.46% .The molecular distillation technique that could get the product with higher content of bomyl acetate has a very good prospect in industry.