Effect of concentration temperature and type of crude drug used during the preparation of Kampo dry extracts

Abstract

Scent is one of the most important factors associated with Kampo medications. However, the dry extract formulation process can lead to a significant loss in scent. The present study utilized cinnamaldehyde as an indicator of the scent component as a method of investigating potential decreases in the scent during the preparation process. The results indicated that the optimum concentration temperature was 52-55°C and that the crude drug involved in the cinnamaldehyde reduction was the apricot kernel.