微波辅助流动萃取槐花中的黄酮类成分

Microwave-assisted dynamic extraction of the total flavonoids, rutin and quercetin from Flos Sophaoae was studied. The dynamic extraction with household microwave oven was applied, and at the same time was compared with Soxhlet extraction and the method of bath extraction with special microwave oven. The results indicated that comparing with Soxhlet extraction this method not only needed a shorter time, but also simplified the procedure, and made higher yield of the extraction, and comparing with bath extraction with special microwave oven, this method have the advantage of cheap, safe and being helpful to investigating the extraction process.

正交试验法优选东紫苏中齐墩果酸的提取工艺

目的:优选东紫苏中齐墩果酸的提取工艺。方法:应用微波辅助流动萃取法,以齐墩果酸含量为指标,通过正交试验法优选提取工艺;以薄层层析-分光光度法测定齐墩果酸的含量。结果:最佳提取工艺条件即微波功率为600W、萃取溶剂为甲醇、溶剂流速为8ml/min、萃取管内径为10mm。结论:微波辅助流动萃取法具有简单、安全、快速、准确、萃取率高等优点。优选的提取工艺稳定、可行,适合工业化生产。