【摘要】 目的优选出秦艽中龙胆苦苷的提取最佳工艺。方法采用正交试验法,以龙胆苦苷含量为指标,考察了乙醇浓度、浸取时间、溶媒用量及提取次数对秦艽中龙胆苦苷提取率的影响,优选出合理的提取工艺。结果用乙醇浓度为70%,浸取时间为36 h,溶媒用量为药材的10倍,提取次数为3次为最佳。结论经验证性实验证明所优选条件可靠,适合秦艽中龙胆苦苷的提取工艺参考。更多还原

【Abstract】 Objective To explore an optimum extraction technology of gentiopicroside from Gentiana macrophylla Pall.Methods Using gentiopicroside as the index,the effects of alcohol concentration,extraction time,solvent amount and extraction degree on extraction technology were evaluated by orthogonal design method.Results The superior technology of gentiopicroside was as follows: 70% alcohol,36 hours,10-fold solvent and extracted 3 times.Conclusion The optimum extraction process is proved stable and accurate,and it is suitable for extraction of gentiopicroside from Gentiana macrophylla Pall.It can be used for the theoretical basis.更多还原