Stevia is a new type of natural sweetener extracted from the stevia herb of the compositae family. It can be widely used in various industries such as food, beverage, medicine and daily chemical etc.

Macroporous resin adsorption method is a common method for separation and purification of stevia. It has the advantages of physical and chemical properties, good selectivity, mild adsorption conditions, convenient regeneration treatment and good strength. It is widely recognized in the commercial development of stevia.