D-(+)-GLUCONO-1,5-LACTONE
What is GDL (Glucono Delta Lactone) Used For?
Glucono Delta Lactone (GDL) is a naturally derived food acidulant that slowly hydrolyzes to gluconic acid when dissolved in water. This gradual pH reduction makes it uniquely valuable across food manufacturing — from silken tofu coagulation to clean-label baked goods.
Key Applications
- Tofu & Soy Products: Preferred coagulant for silken tofu production
- Baking: Slow-release leavening agent in baking powder and self-raising flour
- Meat Processing: Curing accelerator in sausages and cured meats
- Dairy: Acidulant for fresh cheese and yogurt-style products
- Beverages: pH adjustment in fruit drinks and functional beverages
Product Specifications
| Parameter | Specification |
|---|---|
| Assay | ≥ 99.0% |
| CAS Number | 90-80-2 |
| Appearance | White crystalline powder |
| Melting Point | 152–155°C |
| Heavy Metals | ≤ 10 ppm |
| Standard | FCC / E575 / GB 7657 |
| Packaging | 25 kg bags |
Frequently Asked Questions
What makes GDL different from other food acids?
GDL is unique because it releases acidity slowly and uniformly. Unlike citric or lactic acid which acidify instantly, GDL creates a gradual pH drop — critical for silken tofu texture and even leavening in baked goods.
Is GDL natural?
Yes. GDL is derived from glucose fermentation, making it suitable for natural and clean-label products.
How is GDL used in tofu making?
GDL is dissolved in hot soy milk. As it slowly converts to gluconic acid, it coagulates the soy proteins to form smooth silken tofu without the grittiness of traditional coagulants.
Is your GDL certified Halal?
Yes. Halal and Kosher certifications available.
What is the standard packaging for GDL?
Standard 25 kg multi-wall paper bags. Custom packaging available for large orders.
Request a free sample or technical data sheet today.
Related Resources
Guide: GDL in Tofu Production — Complete Manufacturer Guide
Applications: Food Fortification Ingredients Guide


