Alginic Acid is a natural polysaccharide uronic acid in the cell wall of brown algae such as kelp. Chemical formula (C6H8O6)n.The linear copolymer formed by 1, 4- bonding of β-D-mannouronic acid (M) and α-L-guluronic acid (G), the content of G and M in alginate has obvious influence on the gelatinizing properties of the fiber. Alginate is found naturally in the cytoplasm and plays a role in strengthening cell walls. Alginate combines