摘要:
目的:对地鳖虫的脂类提取物的最佳提取方法进行研究.方法:通过对索氏提取与超声法的对比,对超声时间、温度、原料浸泡时间、有机溶剂的选择进行实验,得出最佳的脂类提取条件.结果:本实验通过单因素分析,得出超声40 min时提取率为最高,达到17.23%,60 min时提取率反而下降为l3.7%;超声温度在50°C时提取率最高,达到15.95%,随后在温度达到60°C时下降到14.02%,70°C时下降到10%以下;浸泡6h时提取率最高,达到18.74%.而继续延长浸泡时间12、24、48 h,对脂类的提取量没有影响;有机溶剂无水乙醚提取率最高.结论:超声法应用无水乙醚浸泡6h,超声温度50°C,超声时间40 min为地鳖虫脂类物质提取的最佳条件.%Objective:To optimize the extraction of lipophile fraction of Eupolyphaga sinensis.Methods:Through the comparison of Soxhlet extraction and ultrasonic extraction,the extraction conditions for the lipophile fraction were optimized with ultrasonic time,temperature,soaking time of raw material,organic solvent as the factors.Results:In this study,single factor analysis,The extraction rate was 17.23%,and the extraction rate decreased to 13.7% at 60 min;Ultrasonic temperature at 50 °C when the extraction rate of the highest,reaching 15.95%,then the temperature reached 60 °C to 14.02%.70 °C down to 10% or less;The highest extraction rate was 18.74% when soaked for 6 h.While the prolonged soaking time 12h,24h,48h had no effect on the extraction of lipids;Organic solvent anhydrous ether extraction rate of the highest.Conclusion:The optimized condition was as follows:anhydrous ether soak 6 h,ultrasonic temperature 50,ultrasonic time 40 min.