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出 处:《中药材》2013年第3期478-481,共4页Journal of Chinese Medicinal Materials
摘 要:目的:研究D101大孔吸附树脂分离纯化百蕊草总黄酮的工艺条件。方法:以总黄酮转移率和质量分数为指标,采用动态试验考察D101大孔吸附树脂对百蕊草总黄酮的分离纯化效果及影响因素。结果:D101大孔吸附树脂对百蕊草总黄酮的最佳纯化工艺条件为:上柱液总黄酮浓度为2.259 mg/mL,上柱液速度为1 BV/h,洗脱剂为70%乙醇,洗脱速度为1 BV/h,洗脱剂量为4 BV。总黄酮转移率为94.44%,质量分数为12.45%,此质量分数较百蕊草浸膏中总黄酮的含量(2.91%)提高了4倍多。结论:D101大孔吸附树脂对百蕊草总黄酮有显著的富集作用,且该纯化工艺简单稳定。Objective: To optimize the process parameters for purifying total flavonoids from Thesium chinese with D101 macroporous adsorption resin.Methods: Purification technology of total flavonoids from the extracts of Thesium chinese was investigated by dynamic adsorption method with the transfer rates and the purity of total flavonoids as indexes.Results: The optimal purifying conditions were as follows: sample concentration was 2.259mg / mL with a speed of 1 BV / h,eluent concentration was 70% alcohol with a speed of 1BV / h.After purification,the transfer rate of total flavonoids was 94.44% and the purity of total flavonoids achieved 12.45%,which was 4 times of that by coarse extraction(2.91%).Conclusion: The purification technology is simple,stable and can significantly improve the contents of total flavoids in extracts.
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