Glucono Delta Lactone (GDL) E575 used in Food, Beverage, Pharmaceutical, Health & Personal care products, Agriculture/Animal Feed/Poultry. Glucono Delta Lactone is a multi functional food additive used as a protein coagulant, acidifier, expander, preservative, seasoning, chelating agent, color preserver. The application of Glucono Delta Lactone is in process bean products, meat products, juice beverages, yeast powder, fishes and shrimps, soy/tofu.