蛇床子干乳剂的制备与稳定性考察

制备蛇床子干乳剂并考察其稳定性．超声法提取的蛇床子脂溶性提取物，应用冷冻干燥法制成蛇床子干乳剂，对其进行高温、高湿、强光照试验并预测其有效期．在高温、高湿试验中，蛇床子干乳剂外观颜色无明显变化，且其溶解度、质量以及质量分数变化不大．强光照试验中，蛇床子干乳剂的颜色有明显变化，指标含量也明显降低．有效期实验推测其在25℃，贮存期约为2 a．蛇床子干乳剂对于高温与高湿条件系统较稳定，但对光线敏感，需避光阴凉处保存．

Preparation and stability test of cnidium monnieri dry emulsions

This paper investigated the preparation of cnidium monnieri dry emulsion and its stability .Alcohol extraction of cnidium monnieri was transformed to cnidium monnieri dry e-mulsion by freeze-drying method and the dry emulsion was detected under high temperature , high humidity , strong light , besides its predictive validity .The result showed that in the high temperature and high humidity conditions , the color , solubility , weight and content of cnidi-um monnieri dry emulsion had no significant changes .In contrast, in the strong light condi-tion, the color, solubility, weight and content of cnidium monnieri dry emulsion had signifi-cant changes .The validity experiments speculated that its storage period was about 2 years at 25 ℃.This paper showed that cnidium monnieri dry emulsion was relatively stable in high temperature and high humidity conditions , but was sensitive to light , needing preservation in dark and cool place .