肝宁颗粒剂中川芎的提取和干燥工艺研究

目的：优选肝宁颗粒剂中川芎的最佳提取工艺,并对提取液的浓缩及干燥方式进行考察。方法：以阿魏酸为评价指标,采用正交试验设计,对80%乙醇用量、提取次数和回流时间进行优选；采用正交试验设计,对喷雾干燥的进样速度、进风口温度和药液相对密度进行优选。结果：80%乙醇用量10倍、回流提取3次、每次1 h的提取工艺较为合适,其中提取次数为主要影响因素；喷雾干燥药液相对密度为1.15、进风口温度为120 ℃、流速为8.5 mL·min^-1较为合适,其中进样速度为主要影响因素。结论：该提取工艺和喷雾干燥工艺所得产品中阿魏酸的含量较高,为川芎药材中阿魏酸的提取和干燥方式奠定了实验基础。

Study on extraction and drying of ligusticum chuanxiong in Gan-ning Granule

OBJECTIVE: To find out the optimum extract process for Ligusticum chuanxiong in Gan-ning Granule, and studyed the methods of concentration and dry for the extract. METHOD: With the yield of ferulic acid as the assessment index, to optimize the 80% alcohol totalling, extracting times and circumfluence time for extract process by the orthogonal design, to optimize the inlet-air temperature, feed speed and density of feed for spry drying by the orthogonal design. Result: The optimum procedure was the ferulic acid were extracted for 1 hour with 3 times of 80% alcohol. While extracting times effected it most porminently. The optimal processing conditions of spry drying were inlet-air temperature 120 degrees C, feed speed 8.5 mL x min(-1) and density of feed 1.15, While feed speed effected it most porminently. CONCLUSION: The experimental results provide the basis for the extraction process and drying process of the ferulic acid in ligusticum chuanxiong.