Rosmarinic acid is a kind of multifunctional phenolic acid compound, which can protect human body cells and tissues, prevent the transmission of many diseases, protect cardiovascular and cerebrovascular circulatory system, prevent cancer and delay aging, and has a broad application prospect in food, cosmetics, medicine and other aspects.

The separation and purification of total saponins by macroporous adsorption resin is simple, low cost, safe and non-toxic, and the resin can be repeatedly used, which has become a common method in the world.