Glucono-Delta-Lactone (GDL) is a food-grade cyclic ester of D-gluconic acid, a white odourless crystalline powder with a slightly sweet taste that converts slowly to gluconic acid in water.We supply bulk Glucono-Delta-Lactone sourced from leading China manufacturers, available in powder form for global food and beverage producers. Our Glucono-Delta-Lactone is widely used in soy curd coagulation, baking powder formulations, ham, sausage and bacon, dairy acidification: yogurt and seafood pH control.
Glucono-Delta-Lactone (GDL, E575) is produced by crystallisation of gluconic acid under specific conditions.
Its slow hydrolysis in water (complete in ~2 hours at room temp) provides uniform, gentle pH reduction without the sharp acidity of mineral acids. This enables unique functional effects: smooth tofu gelation, uniform meat curing colour, and controlled leavening in baking powders.
| Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Assay | 99.0–100.5% |
| Specific Rotation [α]20D | +61.5° to +63.5° |
| Melting Point | 152–153 °C |
| pH (1% sol, 30 min) | 3.4–3.8 |
| Loss on Drying | ≤1.0% |
| Reducing Substances | ≤0.5% |
| Chloride | ≤0.02% |
| Sulphate | ≤0.05% |
| Heavy Metals (as Pb) | ≤10 mg/kg |
| Arsenic | ≤3 mg/kg |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Glucono-Delta-Lactone with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.