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目的:优选赤丹肝纤颗粒的醇提最佳工艺。方法:以虎杖苷含量为考察指标,先优选出最佳乙醇浓度,再采用L9(34)正交试验法,考察提取次数、提取时间及乙醇用量对提取效果的影响。结果:最佳醇提工艺条件为以70%乙醇为溶媒回流提取2次,每次2 h,每次溶媒量为药材量的5倍。结论:优选的工艺合理可行、重复性良好、提取效率高,适合于工业化生产。
Objective: To optimize the alcohol extraction process of Chidangan fiber. Methods: Polydatin content was taken as the index to evaluate the optimal ethanol concentration. The L9 (34) orthogonal test was used to investigate the effects of extraction times, extraction time and ethanol dosage on the extraction efficiency. Results: The optimal alcohol extraction process conditions were as follows: reflux extraction with 70% ethanol for 2 times, 2 h each time, the amount of each time the amount of drug was 5 times the amount of herbs. Conclusion: The optimal process is reasonable and feasible, good repeatability, high extraction efficiency, suitable for industrial production.