【摘要】 目的:筛选翻白草中熊果酸的最佳提取工艺。方法:采用超声波提取、正交试验优化及高效液相色谱法测定所得翻白草中熊果酸的含量。结果:翻白草中熊果酸的提取最佳工艺是乙醇浓度为75%,固液比为1:60,提取时间为60min,超声波功率为610W,各因素的影响依次为提取时间>固液比>乙醇浓度和超声波功率。结论:最佳优选结果用于验证实验具有较好的重现性。更多还原

【Abstract】 Objective: To screen optimum the extraction process of ursolic acid from Potentilla discolor Bge. Methods: ultrasonics extraction was used to extract. The optimum extraction process was confimed by the orthogonal test. The content of ursolic acid in Potentilla discolor Bge. was determined by HPLC. Results: The optimum conditions of ultrasonics extraction are as follow: ethanol concentration 75%, time 60 min, ratio of material to solution 1:60, and power of extraction 610 W. The effects of factors on yield decrease progressively in the following order: extracting time>ratio of material to solution>ethanol concentration>power of extraction. Conclusion: The best optimized process has a good repeatability confimatory experiment.更多还原