To investigate the quality transfer relationship between Pinellia Rhizoma (PR) and Pinelliae Rhizoma Praeparatum cum Alumine (PRPA),as well as to assess the consistency in quality between the newly processed product using steam processing and PRPA,this study examined the leachate,organic acids,polysaccharides,nucleosides,and protein content of raw PR and three processed products.Differences among the three processed products were compared using methods such as principal component analysis.The results indicated notable differences in quality between the steamed product and traditional concoctions of PR.Compared to raw PR,the extracts from soaking and boiling decreased,while the extract from steaming increased by 264.76%.Total organic acid and polysaccharide content significantly increased,especially in the steamed product.Nucleoside and protein content,however,experienced substantial reduction.Hence,it can be inferred that the quality consistency of soaked and boiled PRPA is relatively high,while further research is needed to explore the processing techniques and medicinal effects of the steamed products.

"> Pinellia Rhizoma, Pinelliae Rhizoma Praeparatum cum Alumine, processing technique, quality transfer, principal component analysis, consistency