Acidulants

Glucono-Delta-Lactone (GDL) – High-Quality Food Additive for Acidulant, Antioxidant & pH Regulator Applications

  • Type Acidulant
  • E No. E575
  • CAS No. 90-80-2
  • Qty in 20' FCL 25MTs
  • Packaging 25kg bags

📌 Detailed Introduction of Glucono-Delta-Lactone (GDL)

✔ What is Glucono-Delta-Lactone (GDL)?

Glucono-Delta-Lactone (GDL) is a naturally occurring cyclic ester of gluconic acid and is widely used as a food additive. It is a white, crystalline powder that has the unique ability to dissolve into gluconic acid in aqueous solutions, acting as a slow-release acidulant. GDL is used to regulate pH levels, enhance flavor, and control the gelling process in various food products. Its slow-release properties make it useful in cheese, tofu, and as an antioxidant in food preservation.


📌 Production Method & Raw Materials

✔ Raw Materials:

  • Glucose: The main raw material for GDL production, derived from natural sources like corn or sugar beets.

  • Fermentation & Chemical Synthesis: The production of GDL is commonly achieved through fermentation or chemical synthesis of glucose into gluconic acid, which is then converted into Glucono-Delta-Lactone.

✔ Production Process:

  1. Fermentation: Glucose is fermented using specific microorganisms to form gluconic acid.

  2. Lactonization: Gluconic acid undergoes lactonization, converting it into Glucono-Delta-Lactone (GDL), which is then isolated and purified.

  3. Drying: The final GDL product is dried and milled into a fine white powder.


📌 Applications of Glucono-Delta-Lactone (GDL)

✔ Food & Beverage Industry

  • Cheese Production: GDL is used as an acidulant and coagulator in cheese making, particularly in the production of cottage cheese and cream cheese.

  • Tofu Processing: GDL is used as a coagulant in the production of tofu, allowing for the slow release of acid to form the desired texture.

  • Beverages: GDL is added to carbonated drinks and fruit juices as a pH regulator and flavor enhancer.

  • Bakery: Used in baked goods to adjust the pH and improve the shelf life of cakes, pastries, and bread.

  • Canned & Processed Foods: Acts as an antioxidant to improve product stability and freshness in canned foods.

✔ Pharmaceutical & Health Industry

  • Oral Health Products: Used in the formulation of toothpastes and mouthwashes as a mild acidulant.

  • Antioxidant: GDL is used as a natural preservative in certain pharmaceutical formulations to protect against oxidative degradation.

  • Drug Delivery Systems: GDL’s controlled release properties make it useful in controlled-release drug formulations.

✔ Cosmetics & Personal Care

  • Skin Care Products: Used as an antioxidant and pH regulator in lotions, creams, and serums.

  • Hair Care: Added to shampoos and conditioners to help maintain the pH balance of the hair and scalp.

✔ Industrial Applications

  • Metal Plating: GDL is used in the phosphating process for metal surfaces to improve corrosion resistance.

  • Textile Industry: Acts as a dye-fixing agent in textile processing.


📌 Key Benefits of Glucono-Delta-Lactone (GDL)

Controlled Acid Release – Slowly releases gluconic acid, making it ideal for applications that require gradual pH changes, like cheese making and tofu production.
Natural Antioxidant – Protects food products from oxidative spoilage, improving shelf life.
Versatile Applications – Used in food, beverages, pharmaceuticals, and cosmetics.
Safe & GRAS-Approved – Recognized as safe by regulatory bodies for use in food and pharmaceutical applications.
Non-Toxic & Non-Hazardous – A safe alternative to other chemical acidulants and preservatives.
Kosher & Halal Certified – Suitable for a wide range of dietary requirements.


📌 Product Specifications

PropertySpecification
AppearanceWhite crystalline powder
Purity (%)≥ 98.0%
Moisture Content (%)≤ 5.0%
pH (1% Solution)2.0 - 3.0
SolubilitySoluble in water
Ash Content (%)≤ 1.0%
Heavy Metals (ppm)≤ 10
Lead (ppm)≤ 2.0
Arsenic (ppm)≤ 3.0
Microbiological LimitsConforms to food-grade standards
Packaging25kg bags or customized
Shelf Life24 months

📌 Famous Glucono-Delta-Lactone Brands Worldwide

  • Glanbia Nutritionals (Ireland)

  • ADM (United States)

  • Tate & Lyle (UK)

  • Jiangsu Khonor Chemicals Co., Limited (China)


📌 Why Choose Jiangsu Khonor Chemicals Co., Limited for Glucono-Delta-Lactone (GDL)?

High-Quality GDL – Our GDL meets the highest standards for food, pharmaceutical, and cosmetic applications.
Competitive Pricing – Cost-effective for bulk orders and global shipping.
Reliable Supply Chain – Fast delivery and consistent availability for manufacturers.
Custom Solutions – Tailored formulations for specific industry needs.


📌 Order Glucono-Delta-Lactone (GDL) Today!

Looking for a trusted supplier of Glucono-Delta-Lactone (GDL)? Jiangsu Khonor Chemicals Co., Limited provides premium GDL for food, beverages, pharmaceuticals, and industrial applications, with bulk orders and custom packaging.

📞 Contact us today for pricing, bulk orders, and technical details!


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