[Application of membrane separation technology in extraction process of Chuanxiong Chatiao granules].

Objective: To apply the membrane separation process in the concentration process of Chuanxiong Chatiao granules and to lay the foundation for its industrialized application.

Method: The type of membrane, the optimal pressure, the optimal temperature and the optimal detergent were selected by the single factor method. A comparative study was conducted between qualities of extracts from Chuanxiong Chatiao granules by new and traditional processes.