Glucose dehydrogenase is widely used in biosensors for measuring blood glucose levels, particularly in diabetic patients. It plays a crucial role in glucose monitoring devices due to its ability to catalyze the oxidation of glucose, producing an electrical signal that correlates with glucose concentration. This enzyme is also employed in the food industry to monitor and control glucose levels during fermentation processes, ensuring product quality. Additionally, it is utilized in biotechnology for the production of gluconic acid, a compound used in food preservation and as a cleaning agent. Its stability and specificity make it a valuable tool in various industrial and medical applications.