摘要
[目的]优选采用压力共沸精馏装置提取连钱草挥发油的最佳工艺。[方法]采用正交试验对连钱草挥发油的提取工艺条件进行优选,以挥发油得率为指标,选用L9(34)正交试验表;考察影响挥发油收率的浸泡时间(A)、料液比(B)、提取时间(C)、NaCl浓度(D)4个因素,每个因素取3个水平。[结果]连钱草挥发油的最佳提取工艺为浸泡时间6 h,料液比1∶16(g/ml),提取时间4 h,NaCl浓度为0;在此条件下连钱草精油的得率为0.03%。[结论]该方法可靠、快捷,准确度高,可用于连钱草挥发油的提取。
[Objective] To confirm the optimum extraction technology of essential oils from Glechoma longituba（Nakai）Kupr on a pressure azeotropic distillation device.[Method] Taking the yield of essential oils as index,L9（3^4） orthogonal test designed with 4 factors including soaking time（A）,solid-liquid ratio（B）,extraction time（C） and NaCl concentration（D） each of 3 levels was carried out to optimize the extraction technology of essential oils from Glechoma longituba（Nakai）Kupr.[Results] The optimum technology for extracting essential oils from Glechoma longituba（Nakai）Kupr was a combination of 6 h soaking time,1∶ 16 solid-liquid ratio,4 h extraction time and 0 NaCl concentration,under which the yield of essential oils could reach 0.03%.[Conclusion] The method was reliable,rapid and accurate,which could be used to extract essential oils from Glechoma longituba（Nakai）Kupr.
出处
《安徽农业科学》
CAS
北大核心
2011年第32期19753-19754,共2页
Journal of Anhui Agricultural Sciences
