Name：Gluconolactone
Cas: 90-80-2
Purity: 99%
MOQ: 1KG
Gluconolactone (CAS Number: 90-80-2), also commonly known as Glucono-Delta-Lactone (GDL), is a naturally occurring polyhydroxy acid (PHA) produced through the controlled oxidation of D-glucose. It exists as a white, odorless, crystalline powder that dissolves readily in water.
In aqueous solutions, Gluconolactone undergoes a gradual hydrolysis, establishing an equilibrium with gluconic acid. This unique property enables a controlled, progressive release of acidity, making it superior to traditional organic acids where rapid pH reduction is undesirable. As a multi-functional additive, Gluconolactone serves as a gentle acidulant, protein coagulant, chelating agent, and mild exfoliant across food processing, cosmetic formulations, and pharmaceutical preparations. Its mild nature and high biocompatibility make it a preferred choice for clean-label and sensitive skin applications worldwide.
| Melting point | 160 °C (dec.)(lit.) |
| alpha | 65 º (c=1,H2O) |
| Boiling point | 230.35°C (rough estimate) |
| bulk density | 750kg/m3 |
| density | 0.6 |
| refractive index | 63.5 ° (C=10, H2O) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 590g/l Hydrolysis |
| pKa | 12.06±0.60(Predicted) |
| form | Crystalline Powder |
| color | White to off-white |
| Odor | wh. cryst. powd., pract. odorless |
| PH | 3.6 (10g/l, H2O, 20℃) |
| biological source | microbial |
| Water Solubility | 500 g/L (20 ºC) |
To ensure global market access and seamless integration into food and personal care production lines, our Gluconolactone manufacturing process strictly conforms to international quality and safety benchmarks:
ISO 9001:2015: Quality Management System certified, guaranteeing process consistency from fermentation to final packaging.
ISO 22000 / FSSC 22000: Food Safety Management System implemented with end-to-end traceability and strict hygienic controls.
HACCP Certified: Comprehensive Hazard Analysis Critical Control Point system applied across all handling and processing phases.
Kosher & Halal Certified: Fully verified by authorized religious certification bodies for worldwide dietary compliance.
Global Pharmacopeia & Food Standards: Meets or exceeds specifications outlined in FCC (Food Chemicals Codex), USP, EP, and European Union additive regulations (E575).
Every production lot of Gluconolactone is subjected to full-spectrum analytical testing in our modern quality assurance laboratory prior to dispatch. Our internal QC procedures verify physical, chemical, and microbiological integrity to ensure conformity with international standards.
Analytical Inspection Matrix (Typical Specs for Food/Cosmetic Grade Powder)
| Test Parameter | Internal Specification Standard | Test Method / Equipment |
| Assay (Gluconolactone) | 99.0% – 101.0% | Acid-Base Potentiometric Titration |
| Appearance | White Crystalline Powder | Visual Inspection |
| Melting Point | 150°C – 154°C (with decomposition) | Capillary Melting Point Apparatus |
| Solubility in Water | Complete and clear solution (50g / 100ml at 20°C) | Dissolution Test |
| Loss on Drying | ≤ 0.5% | Gravimetric Method (105°C, 2 hrs) |
| Residue on Ignition | ≤ 0.1% | High-Temperature Muffle Furnace |
| Heavy Metals (as Pb) | ≤ 10 ppm | ICP-OES / AAS |
| Arsenic (As) | ≤ 1 ppm | Atomic Fluorescence Spectrometry |
| Lead (Pb) | ≤ 1 ppm | ICP-MS |
| Microbiological Limits | Total Plate Count < 1000 CFU/g, Mold & Yeast < 100 CFU/g, Pathogens Negative | Standard Microbiological Assay |
Note: Batch-specific Certificate of Analysis (COA), Technical Data Sheet (TDS), and Safety Data Sheet (SDS) are provided with every shipment.
Commercial & Industrial Applications
A. Food & Beverage Industry
Protein Coagulant: Acts as a slow-release acidifier ideal for tofu production, sausage curing, and cheese making, yielding smooth textures without bitter aftertastes.
Controlled Acidulant & Leavening Agent: Used in baking powders, dairy products, and jams where gradual acidification improves shelf life, flavor profile, and dough rise consistency.
Color & Freshness Retention: Functions as a mild antioxidant helper and metal chelator, preserving natural coloration in seafood, cured meats, and processed fruits.
B. Cosmetics & Personal Care Formulations
Gentle PHA Exfoliant: Serves as a next-generation polyhydroxy acid that smooths skin texture and promotes epidermal renewal with significantly lower risk of irritation compared to AHAs and BHAs.
Hydration & Barrier Support: Features multiple hydroxyl groups that attract and bind water molecules, strengthening the skin’s natural moisture barrier.
pH Adjuster & Formulation Stabilizer: Helps stabilize delicate emulsions while chelating trace metal ions to protect active ingredients from degradation.
C. Pharmaceuticals & Technical Uses
Buffering & Chelating: Utilized in specialized pharmaceutical liquid preparations and industrial cleaning compounds requiring precise, non-corrosive pH control.
Related References
Pubchem-Gluconolactone
Manufacturer of Gluconolactone
Zhishang Chem is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Gluconolactone manufacturer, Zhi shang Chem has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
Q1: How does Gluconolactone differ from traditional Alpha Hydroxy Acids (AHAs) in cosmetic formulations? A1: Gluconolactone has a larger molecular structure than traditional AHAs like glycolic acid. As a result, it penetrates the outer skin layer more gradually, offering mild exfoliation and hydration with reduced potential for stinging or redness, making it ideal for sensitive skin products.
Q2: Why is Gluconolactone preferred as a coagulant in tofu and dairy manufacturing? A2: Unlike direct acids that cause rapid, uneven protein precipitation, Gluconolactone hydrolyzes gradually in water to release acid slowly. This slow acidification creates a fine, uniform protein network, resulting in tofu and cheese with superior water retention, smooth mouthfeel, and excellent yield.
Q3: What are the recommended storage conditions to prevent caking? A3: Gluconolactone is hygroscopic and should be stored in cool, dry conditions in its original moisture-proof packaging (e.g., multi-wall paper bags with inner PE liners). Keep containers tightly sealed when not in use to protect against atmospheric moisture. Under proper warehouse conditions, shelf life is 24 months.
Q4: Is your Gluconolactone derived from natural sources or genetically modified feedstocks? A4: Our Gluconolactone is produced via non-GMO glucose fermentation pathways, meeting strict clean-label requirements. Non-GMO declarations and origin certificates are available upon request.
Q5: How can technical teams request COAs and formulation samples? A5: Samples along with complete documentation (COA, SDS, TDS, Kosher, Halal) can be requested directly by filling out the contact form on our website or emailing our sales support team.
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
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