DIOSCOREAE RHIZOMA

Details

Appearance Characters：Scraping outer skin, thick slice (2 - 4mm), cut surface is white or yellowish-white. No mold, no spot, no pollution, no impurity, no quality soft products, no blackening products. Almost odorless, tasteless.

As one of the four " huaiqing Chinese medicines", planted in henan province. It has built standard planting base,the use of pesticides must adopted license by Positive List,to guide and regulate the use of pesticides.The whole process of implementation can be traced back. Processing while fresh in place of origin, after repeated trial and error, has formed a set of quality assurance of pure sulfur production and processing technology.