Mannitol is an isomer of sorbitol, a white transparent solid with a sugar-like sweetness. Mannitol is a good diuretic in medicine, reducing intracranial pressure and intraocular pressure. It can be used in the manufacture of kidney medicine, dehydration medicine, sugar substitute, and also as an excipient for tablets and a solid and liquid diluent. Mannitol can be extracted from the ingredients of kelp.

The large pore adsorption resin provided by Suzhou Bojie Resin Technology Co., Ltd. has strong adsorption capacity, long service life, stable physical and chemical properties, good selective separation effect, practicality and low cost. It is often used for purification and separation of organic matter and extraction of mannitol. The effect is very ideal, and has been widely used in the extraction process of mannitol, which has been well received by domestic and foreign customers.