表面活性剂-超声协同提取一点红总黄酮工艺的研究

摘要

目的：优选表面活性剂-超声协同提取一点红中总黄酮的工艺条件。方法以总黄酮提取率为指标，采用正交试验优化提取工艺。结果最佳提取工艺参数：1.0％吐温-80，70％乙醇，料液比1∶15，超声提取60min。优化条件下，一点红中总黄酮的提取率为4.63％，明显高于传统提取法。结论采用表面活性剂-超声协同提取一点红中的总黄酮，能提高提取率，可降低生产成本，是一种较理想的提取工艺。%OBJECTIVE To optimize the extraction technology of flavonoids from Emilia sonchifolia( Linn.) DC with surfactant-ultrasound extraction.METHODS Orthogonal test were used to study the extraction conditions with the extracting rate of flavonoids as indexes.RESULTS The optimal technical conditions as follows:1.0%tween-80 as solubilizing agent ,70%ethanol as extracting solvent ,the proportion of raw material to solvent was 1∶15,the ultra-sound treatment time was 60 min.Under this conditions , the extraction rate reached 4.63%, which obviously higher than the conventional extraction methods.CONCLUSION The surfactant-ultrasound method is higher extraction rate,lower costs and can be applied multipurposely.