RESUMEN
OBJECTIVE：To optimize the hot sand processing technology of Alpinia officinarum，and to provide scientific evidence for the standardized processing of A. officinarum. METHODS：The contents of galangin and curcumin in processed A. officinarum were determined by HPLC. Based on single factor test，using processing temperature and processing time as factors，comprehensive score of galangin and curcumin contents as index，central composite design-response surface method was used to optimize hot sand processing technology of A. officinarum，and the processing technology was validated. RESULTS：The optimal processing technology included processing temperature of 200 ℃ and processing time of 5.5 min. In validation tests，average comprehensive score was 94.38 （RSD＝1.02％），relative deviation of which to predicted value 93.74 was 0.68％. CONCLUSIONS：The optimized processing technology is simple and predictable. It can be used for hot sand processing technology of A. officinarum.
RESUMEN
For many years, TCM formula granules, as a new form of decoction pieces reform, have been favored by people with its three features—Three Efficacy, Three Small and Five Conveniences. As a result, it has become the ideal product in the course of TCM internationalization. In the face of growing sales, to formulate its standard becomes imminent. Therefore, how to establish a system that is unique to standardization of TCM formula granules has become a research hotspot of scholars. This article summarized Results of recent research on the preparation, quality control, pharmacology studies and clinical evaluation of TCM formula granules, with a purpose to put forward relevant suggestions, and provide references for standardization of TCM formula granules.