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目的 :研究射干中总黄酮的提取工艺。方法 :采用正交试验法进行优选 ,紫外分光光度法测定总黄酮含量。结果 :提取时间、乙醇用量和乙醇浓度对提取有非常显著性和显著性影响。结论 :最佳提取工艺为药材 8倍量 80 %乙醇 ,每次提取 90min。
Objective : To study the extraction process of total flavonoids in stems and stems. Methods : The orthogonal test method was used to optimize the determination of total flavonoids by ultraviolet spectrophotometry. Results: The extraction time, ethanol dosage and ethanol concentration had a very significant and significant effect on the extraction. Conclusion : The best extraction technology is 8 times of 80% ethanol, and each extraction is 90 minutes.