Galactose oxidase is widely used in biochemical research and industrial applications due to its ability to catalyze the oxidation of galactose. In biotechnology, it is employed for the modification of polysaccharides and glycoproteins, enabling the study of carbohydrate structures and functions. This enzyme is also utilized in biosensors for detecting galactose levels, which is particularly useful in medical diagnostics for monitoring conditions like galactosemia. Additionally, galactose oxidase plays a role in the production of bio-based materials, such as cross-linked polymers, by facilitating specific oxidative reactions. Its application in food science includes improving the texture and stability of dairy products by modifying galactose-containing compounds.