[Objective] The study aims to optimize the extracting technology conditions of essential oil from Elsholtzia densa Benth. [Method] Essential oil was extracted from E. densa Benth using steam distillation, and the effe...[Objective] The study aims to optimize the extracting technology conditions of essential oil from Elsholtzia densa Benth. [Method] Essential oil was extracted from E. densa Benth using steam distillation, and the effects of four extracting factors (grain size of the medicinal herb, ultrasonic time, soaking time and ratio of the material to liquid) on the yield of essential oil extracted from E. densa Benth were analyzed through the orthogonal test. [Result] The optimized extraction process of essential oil from E. densa Benth was as follows: grain size of the medicinal herb 50 mesh, ultrasonic time 12 min, being soaked in the water for 6 h, and ratio of the material to liquid 1∶16 g/ml. Under the conditions, the average extracting rate of the essential oil was 0.407%. [Conclusion] The optimized extraction process of essential oil from E. densa Benth was simple and practicable, and its extracting rate was higher.展开更多
目的探究密花香薷能否作为香薷的代用品。方法水蒸气蒸馏法分别提取两种植物挥发油。气相色谱—质谱(gas chromatography and Mass spectrum,GC-MS)联用技术检测其两者挥发油的化学成分,并以峰面积归一法测定各成分的相对百分含量,对比...目的探究密花香薷能否作为香薷的代用品。方法水蒸气蒸馏法分别提取两种植物挥发油。气相色谱—质谱(gas chromatography and Mass spectrum,GC-MS)联用技术检测其两者挥发油的化学成分,并以峰面积归一法测定各成分的相对百分含量,对比两者挥发油化学成分与含量的差异。结果检测得到7种共有成分,分别占密花香薷与香薷挥发油含量的98.941%和98.630%,其中主成分均为香薷属特征性成分β-去氢香薷酮。结论密花香薷与香薷的挥发油成分与比例高度契合,可以进一步探讨密花香薷替代香薷的可能性,为临床尝试打下一定的研究基础。展开更多
基金Supported by the Open Lab Project and Innovative Entrepreneurial Project of Institute of Chemical Engineering,Northwest University for NationalitiesFundamental Research Funds for the Central Universities( ZYZ2011063)
文摘[Objective] The study aims to optimize the extracting technology conditions of essential oil from Elsholtzia densa Benth. [Method] Essential oil was extracted from E. densa Benth using steam distillation, and the effects of four extracting factors (grain size of the medicinal herb, ultrasonic time, soaking time and ratio of the material to liquid) on the yield of essential oil extracted from E. densa Benth were analyzed through the orthogonal test. [Result] The optimized extraction process of essential oil from E. densa Benth was as follows: grain size of the medicinal herb 50 mesh, ultrasonic time 12 min, being soaked in the water for 6 h, and ratio of the material to liquid 1∶16 g/ml. Under the conditions, the average extracting rate of the essential oil was 0.407%. [Conclusion] The optimized extraction process of essential oil from E. densa Benth was simple and practicable, and its extracting rate was higher.
文摘目的探究密花香薷能否作为香薷的代用品。方法水蒸气蒸馏法分别提取两种植物挥发油。气相色谱—质谱(gas chromatography and Mass spectrum,GC-MS)联用技术检测其两者挥发油的化学成分,并以峰面积归一法测定各成分的相对百分含量,对比两者挥发油化学成分与含量的差异。结果检测得到7种共有成分,分别占密花香薷与香薷挥发油含量的98.941%和98.630%,其中主成分均为香薷属特征性成分β-去氢香薷酮。结论密花香薷与香薷的挥发油成分与比例高度契合,可以进一步探讨密花香薷替代香薷的可能性,为临床尝试打下一定的研究基础。