Optimization Study on Extraction Technology of Runfei Zhike Tablets by Orthogonal Design with Multi-targets

Objective:Optimization study on extraction technology of Runfei Zhike tablets.Method: The orthogonal experiment was used to optimize the extraction technology with catalpol,ferulic acid and the extract as index to investigate the influence of water added,extraction times,adding water multiples on extraction technology and finally determined best water extraction process of radix rehmanniae,prepared rehmannia root,officinale and angelica.Result: The best extraction process was as follows: adding 10 times water quantity,extraction 90min,extraction 2 times.Conclusion:Select key indicators monarch smell also joined the alcohol extreat of the eindicators,both the charactcristics of tradition Chinese medicine complex components,can be more reasonable reflection of the extraction.