The techniques of extracting berberine from rhizoma of Coptis chinese by ultrasound are studied by experiment systematically.The OPtimum parameters for extraction berberine are proposed.

• 对从黄连中提取小檗碱成分的超声技术工艺进行了系统的实验研究，给出了超声提取小檗碱的最佳工艺参数。