Glucono-delta-lactone (GDL) is a cyclic ester of gluconic acid được sản xuất bởi the enzymatic oxidation of glucose using glucose oxidase or by fermentation with Aspergillus niger. When dissolved in water, GDL slowly hydrolyzes to gluconic acid. Nó cung cấp a gradual and controlled decrease in pH.
This unique slow-acidification property makes GDL the preferred coagulant for silken tofu production and an ideal ingredient for meat curing without starter cultures. GDL also chức năngs as a leavening acid in combination with baking soda. This produces carbon dioxide with a controlled reaction rate. Its mild, hơi ngọt flavor and clean-label status make it a versatile chất điều chỉnh độ chua for modern food chế biến.