Curdlan Gum
Curdlan Gum is a linear β-1,3-glucan polysaccharide produced by aerobic fermentation of Alcaligenes faecalis var. myxogenes. It is the rare hydrocolloid that forms a thermo-irreversible gel when an aqueous suspension is heated above 80 °C and then held or cooled.
The polymer is built from glucose units linked exclusively by β-1,3 glycosidic bonds, with no branching or substitution. This pure backbone is what produces the unusual thermal gelling behaviour.
We source bulk Curdlan Gum from top China manufacturers for our partners, working with several of them. The manufacturers are mostly in Hebei, Ningxia and Zhejiang. For this ingredient the minimum order is 100 kg, and a smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Minimum order
- 100 kg
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
Grades / Types Available: Food Grade
| Item | Specification |
|---|---|
| Appearance | White to off-white powder |
| Odour | Odourless |
| Assay (as β-1,3-glucan) | ≥80.0% |
| Loss on Drying | ≤10.0% |
| Ash | ≤6.0% |
| Nitrogen | ≤1.0% |
| Gel Strength (2%) | ≥800 g/cm² |
| Particle Size | 100 mesh pass ≥98% |
| Lead | ≤2 mg/kg |
| Total Plate Count | ≤10,000 cfu/g |
| E. coli / Salmonella | Negative |
| Purity | ≥ 90% |
| Viscosity | 1000-3000 mPa.s (1% solution) |
| Moisture/Loss on Drying | ≤ 10% |
| pH | 6.0-8.0 |
| Particle Size/Mesh | 100% pass through 80 mesh |
| Heavy Metals | ≤ 10 ppm |
| Arsenic | ≤ 1 ppm |
| Yeast & Mold | ≤ 100 cfu/g |
Common Markets Grades
There are two grades of Curdlan Gum, food and pharmaceutical.
Food-grade curdlan runs at 80 to 95 percent glucan purity and is the standard for processed meat, surimi, noodles, and bakery applications.
Pharmaceutical-grade curdlan carries a higher purity and serves drug delivery, vaccine adjuvant, and biomedical research use.
Particle size grades range from coarse 80 mesh for processed meat to fine 200 mesh for noodle and bakery dough use.
Applications
- Surimi, fish balls, and seafood analogues for elastic gel texture
- Sausages, hams, and processed meat for water binding and slicing yield
- Tofu-like products and bean-curd analogues
- Noodles and pasta as a texture enhancer and bite improver
- Bakery: bread, cake, and steamed bun improvers
- Frozen dim sum and dumpling wrappers for freeze-thaw stability
- Plant-based meat analogues for fibrous texture
- Pharmaceutical sustained-release tablet matrices
- Vaccine adjuvants and immunomodulators in research
- Edible film coatings and casings
China Manufacturers of Curdlan Gum
Top Curdlan Gum manufacturers in China.
- Hebei Fengchuan Biotechnology Co., Ltd.4 ingredients in the directory
- Hebei Xinhe Biochemical Co., Ltd.6 ingredients in the directory
- Northwest Biological (Ningxia) Technology Co., Ltd.4 ingredients in the directory
Zhejiang Top Hydrocolloids Co., Ltd.10 ingredients in the directory
Zhengzhou Opal Biotech.limited.2 ingredients in the directory
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source Curdlan Gum
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your Curdlan Gum out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load Curdlan Gum together with other ingredients such as Carrageenan, Sodium Carboxymethyl Cellulose and Agar Agar into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
Curdlan Gum is approved as a food additive in several major markets.
It is permitted in Japan, Korea, Taiwan, China, and the United States (as GRAS for specific applications including surimi and noodles). The European Union has authorised curdlan as E424 under Regulation (EC) No 1333/2008 for limited categories.
JECFA reviewed curdlan and assigned ADI not specified. Halal, Kosher, vegan, non-GMO, and gluten-free certifications are routinely available.
Manufacturing Process
Curdlan is produced by submerged aerobic fermentation of Alcaligenes faecalis on a glucose- or sucrose-based medium with controlled nitrogen, phosphate, and trace elements.
The organism secretes curdlan into the broth over a 60 to 80 hour fermentation at 30 °C. Unlike many gum fermentations, curdlan is poorly soluble in water and accumulates as fine particles around the cells.
After fermentation, the broth is alkalised to dissolve the polymer, separated from biomass by centrifugation, and re-precipitated by neutralisation. The precipitate is washed, dewatered, dried, and milled.
Chinese fermentation manufacturers in Jiangsu and Shandong supply most of the world's commercial curdlan today, with smaller historic production in Japan by Takeda.
