抄録
Yagen is an oriental grinder for crude plant medicines. It consists of a disk and navicular mortar.
A Chinese yagen with the inscription, Product of the Ming-Zhengde Period，(1506～1521 A.D.) has been housed for 40 years in the Naito Memorial Museum of Pharmaceutical Science and Industry (Kakamigahara, Gifu Prefecture, Japan). To identify the district that produced this yagen, the authors analyzed the elements using an X-ray fluorescence spectrometer.
The results showed that the blue design and blue Chinese characters on the yagen were enameled with elements of cobalt, manganese, and iron. Therefore, it is believed that the yagen was made in an old porcelain kiln near Zhangzhou in Fujian Province, China.
However, as the period of production could not determined in the present study, further research is needed in the future.
PMID: 26427097 [Indexed for MEDLINE]
