榆荚仁提取物中挥发油的提取及其化学成分的GC-MS分析

Extraction and determination of the volatile oil of Fructus Ulmns pumila by GC-MS

摘要: 采用水蒸气蒸馏、环己烷捕集馏出物的方法提取榆荚仁中的精油,利用气相色谱-质谱联用技术,分析榆荚仁提取物中精油的化学成分。同时研究了不同单因素,如蒸馏时间、蒸馏pH、萃取剂种类等条件对所得精油量的影响。结果表明,最佳蒸馏pH为5,最佳蒸馏时间为4.5h,环己烷萃取效果较乙醚萃取效果好。榆荚仁挥发油中主要成分为酯类和酸类物质。

Abstract: The volatile oil of Fructus Ulmns pimila had been picked up by distillation. Chemical constituent of volatile oil from Fructus Ulmns pumila had been analyzed by GC-MS. At the same time, various of factors had been investigated, such as the time, the value of pH, extractive impregnant and so on. The result showed that the optimal value of pH was 5, the optimal time of distillation was 4.5h, the extractive effect of cyclohexane was better than that of aether. The main ingredients volatile oil of Fructus Ulmns pumila contained were acids and esters mostly.