Study on Extracting Technology of Astragalan Polysaccharide (ASP) and Astragaloside (AS)

The technology of extracting Astragalan Polysaccharide(ASP) and Astragaloside(AS) has been studied are two important ingredients with biological activity. For obtaining ASP and AS at the same time, the optimum times and concentration of ethanol extracting were determined in the research. Besides, the higher yield and content of ASP and AS can be obtained through combining ultrafiltration and the resin absorbing method.