Mannuronic acid is a type of sugar acid that is derived from the polysaccharide alginate, which is found in the cell walls of brown algae. It plays a significant role in the structure and function of alginate, contributing to its gel-forming properties. Mannuronic acid is important in various applications, including food, pharmaceuticals, and biotechnology. In addition to its industrial uses, mannuronic acid is studied for its potential health benefits. Research suggests it may have antioxidant and anti-inflammatory properties, making it a subject of interest in the field of nutraceuticals. Its unique chemical structure allows for various modifications, enhancing its functionality in different applications.