Marine mussels, such as: purple mussels, thick-shelled mussels, emerald mussels, etc., anchor themselves to solid surfaces such as rocks, hulls, cables, and drift bottles under seawater by means of mussel mucin secreted by their peduncle filaments, forming a water-resistant bond that withstands the scouring of wind and waves and so on.

Mussel mucin is extracted from the pedunculated filament glands of marine mussels and purified by industrial chromatography to obtain a single protein of high purity. It has the functions of promoting cell wall crawling, promoting wound healing, inhibiting itching, broad-spectrum adhesion, and forming water-resistant protective film. It can be widely used in the fields of surface chemistry, biomedicine, marine engineering, daily chemical products and so on.