正交试验法优选烧伤膏中醇提部分的提取工艺

目的考察烧伤膏中醇提部分的提取工艺。方法采用正交试验设计法，以浸膏得率、大黄素转移率为考察指标，优选提取工艺条件。结果提取因素按影响大小依次是乙醇浓度（A）〉乙醇量（B）〉回流时间（C），最佳提取条件是以85％乙醇为溶剂，加热回流提取2次，加醇量分别为药材量的8倍和6倍，提取时间分别为2h和1．5h。结论优化出的醇提部分的最佳提取工艺合理可行。

Optimized Extracting Technology of Ethanol Extracting Ingredients from Burns Ointment by Orthogohal Test Design

Objective To observe the extracting technology of the ethanol extracting ingredients from Burns Ointment. Methods Using theemodin shift rate and extracting rate as indexes, the optimum extracting condition were optimized by orthogonal test design. Results The order of influencing factors for extraction was the concentration of ethanol（A） added ethanol volume（B） extracted times（C）. The optimal extracting condition was 85% ethanol as solvent, reflux extracting twice, adding ethanol with 8 times and 6 times amount of medicinal materials, extracting time 2 h, 1. 5 h respectively. Conclusion The optimal extracting technology for ethanol extracting ingredients from Burns Ointment is reasonable and feasible.