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目的:研究膝痹膏方中当归的最佳提取工艺。方法:采用L9(34)正交试验设计,以当归中阿魏酸的含量为指标,考察乙醇体积分数、用量及提取时间对提取工艺的影响。结果:当归中阿魏酸最佳提取工艺为:7倍量50%乙醇加热回流提取3次,每次2.5 h。结论:优选出的最佳提取条件,经验证其结果稳定,方法可行。
Objective: To study the best extraction technology of Angelica sinensis with Kubi Paste. Methods: L9 (34) orthogonal design was used. The content of ferulic acid in Angelica sinensis was used as an index to investigate the effects of ethanol volume fraction, dosage and extraction time on the extraction process. Results: Angelica ferulic acid best extraction process: 7 times the amount of 50% ethanol was heated to reflux extraction three times, each time 2.5 h. Conclusion: The optimal extraction conditions are obtained, and the results are stable and the method is feasible.