Are rich in flavonoids in onion skin, it has antioxidant, antivirus, the prevention and treatment of cardiovascular disease and enhance the body's immune ability and so on the many kinds of active, thus further purification flavonoids in onion skin is of great significance.

Resin technology co., LTD. Suzhou bo jie with macroporous adsorption resin used for isolation and purification of onion skin, has a good selectivity, large adsorption capacity, adsorption regeneration process convenient and fast, easy and simple to operate, and other advantages.