Glucono Delta-Lactone (GDL) is a naturally derived organic compound, produced through glucose fermentation. It appears as a white, crystalline powder and is known for its slow hydrolysis into gluconic acid when mixed with water, offering mild acidity. GDL is widely used in the food industry as a coagulant, acidulant, leavening agent, and preservative. Its gradual release of acid makes it ideal for controlling pH in tofu production, baking, and preserving meats and dairy. As a clean-label ingredient, GDL meets consumer demand for natural, non-synthetic additives in food and cosmetic applications.