摘要
目的:优化乌饭树树叶中总黄酮的超声提取工艺。方法:采用单因素试验和正交设计,以总黄酮的含量为指标,以提取溶剂浓度、料液比、提取时间、提取次数为试验因素,优化乌饭树树叶中总黄酮的超声提取工艺。结果:优化试验方案所得乌饭树树叶中总黄酮最佳提取工艺为:70%乙醇,料液比为1∶40,提取时间30 min,提取次数2次。结论:该提取工艺稳定、可行,研究结果可为改进现有乌饭树树叶总黄酮的提取工艺提供有益参考。
Objective:To optimize the ultrasound-assisted extraction process of total flavonoids in Vaccinium bracteatum Thunb. leaves. Methods:The single factor test and orthogonal test were adopted with the content of total flavonoids as the index, and the ultra-sound-assisted extraction was optimized with the concentration of solvent, extracting time, ratio of raw material to liquid and extraction times as the factors. Results:The optimal extraction conditions were 70% ethanol with 40-fold volume, extracting 2 times with 30 mi-nutes per time. Conclusion:The extraction process is stable and feasible, and all the results are useful references for the extraction process improvement.
出处
《中国药师》
CAS
2015年第1期66-68,共3页
China Pharmacist
关键词
乌饭树
总黄酮
提取工艺
Vaccinium bracteatum Thunb. leaves
Flavonoids
Extraction process