微波辅助提取生姜油的工艺条件及其GC-MS成分分析

目的]探讨微波辅助提取生姜油的工艺条件及生姜油成分。方法]以干生姜粉为原料,以蒸馏水为极性溶剂,研究了微波消解、水蒸气辅助提取生姜油的工艺流程及条件,并对生姜油成分进行了GC-MS定性分析。结果]微波辅助提取生姜油的最佳工艺条件：以蒸馏水为浸提剂,微波消解功率为480W,微波消解时间为50s,微波消解压力为1.5kg/cm2,然后用水蒸气蒸馏,该工艺条件下提取率较传统水蒸气蒸馏提高了约46.5%。生姜油GC-MS定性分析表明,相似度在70%以上的共鉴定出37种物质,主要有烷类、烯类、醛类、醇类、酯类、酮类等化合物。结论]为生姜油的开发应用提供了理论依据。

Microwave-assisted Extraction Technology of Ginger Oil and Its Component Analysis by GC-MS

Objective]The aim was to study microwave-assisted extraction technology of ginger oil and its component analysis by GC-MS.Method]Microwave-assisted extraction technology conditions of ginger oil were studied by taking dry ginger power as material and distilled water as polar solvent,meanwhile components of ginger oil were analyzed by GC-MS.Result] The optimum microwave-assisted extraction technology of ginger oil was as follows:distilled water was used as the extraction solvent;the microwave digestion pressure was 800 W;the microwave digestion time was 60 s;the microwave digestion pressure was 1.5 kg/cm2;then the distillation was operated with water-gas.Under above conditons,the extracting rate of ginger oil was improved by about 46.5% more than that of operating with water-gas only.GC-MS analysis result showed that there were 37 kinds of matters with more than 70% similarity,mainly including alkanes,alkenes,aldehyde,alcohols,ketones,esters,etc.Conclusion]The research provides theoretical basis for the development and application of ginger oil.