摘要
目的研究超声波法碱水提取叶下珠黄酮的工艺。方法以pH、处理时间、料液比为主要考察因素,以浸取样品中总黄酮的含量为主要考察指标,确定最佳提取条件。结果最佳提取工艺为:Ca(OH)2的pH值为11,超声波提取时间为40min,料液比为1∶50。结论与传统的乙醇提取法进行对比显示,用超声波提取法具有快速、高效等特点。
Objective To determine total flavone in Phyllanthus urinaria L. by VIS Spectrophotometry. Methods Using the content of flavone as indexes, the effects of pH, extraction time, w/v were evaluated by orthogonal experiments. Results The optimum conditions were as follows ： pH = 11,40 min, w/v = 1/40. Conclusion The method of ultrasonic extraction has a higher extraction rate and efficiency than traditional ethanol extraction.
出处
《时珍国医国药》
CAS
CSCD
北大核心
2008年第7期1599-1601,共3页
Lishizhen Medicine and Materia Medica Research
基金
广西自然科学基金项目资助(No.桂科自0640038)
关键词
超声波
叶下珠
黄酮
Ultrasonic waves
Phyllanthus urinaria L.
Flavone
