Sodium Propionate
Sodium Propionate is the sodium salt of propionic acid, used as an antimicrobial preservative in bakery products and selected dairy applications.
The compound has the molecular formula C₃H₅NaO₂ and a molar mass of 96.06 g/mol. Solubility in water is very high (around 100 g per 100 mL at 20 °C), substantially higher than calcium propionate, which simplifies its incorporation into liquid systems.
The substance acts on the same mechanism as the rest of the propionate family, primarily inhibiting moulds and rope-forming bacilli through cytoplasmic acidification.
We source bulk Sodium Propionate from top China manufacturers for our partners, working with several of them. The manufacturers are in Shandong and Jiangsu. For this ingredient the minimum order is 500 kg and a 20-foot container takes 16 MT, 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
- 500 kg
- Qty in 20' FCL
- 16 MT
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
| Item | Specification |
|---|---|
| Appearance | White crystalline powder or granules |
| Assay (dry basis) | 99.0% to 100.5% |
| Loss on drying | ≤ 1.0% |
| Heavy metals (as Pb) | ≤ 10 mg/kg |
| Arsenic | ≤ 3 mg/kg |
| Iron | ≤ 30 mg/kg |
| Free propionic acid | Passes test |
| Particle size | Per customer specification |
Common Markets Grades
Sodium Propionate is a fine white crystalline powder with low residual moisture.
Food grade meets FCC specifications and is the dominant commercial form for bakery and dairy use.
Pharmaceutical grade complies with USP requirements and is used as an antifungal excipient in topical ophthalmic and dermatologic preparations.
Both grades are typically packaged in moisture-barrier liners because the salt is mildly hygroscopic and can cake under humid storage.
Applications
- Bakery products including pan bread, cake, and pastry as a mould inhibitor
- Tortillas and flatbreads in formulations preferring a sodium counter-ion
- Pre-packaged baked snacks and bars
- Processed cheese spreads and cheese-food products
- Cottage cheese and selected fresh cheeses as a surface antimicrobial
- Buttermilk and cultured cream products
- Animal feed and silage as a mould inhibitor
- Pet food, including soft-moist formats
- Pharmaceutical topical and ophthalmic preparations as a preservative
- Industrial coatings and adhesives requiring fungal-growth control
Brands Using Sodium Propionate
Widely-distributed consumer products that list Sodium Propionate on the ingredient label.
Brand names, product names and logos are the property of their owners. They appear here as published evidence that the ingredient is used, taken from the brand's own label or website. Their appearance is not an endorsement, and it does not mean the brand buys from us or from any manufacturer listed on this site.
China Manufacturers of Sodium Propionate
Top Sodium Propionate manufacturers in China.
ETON Food Co., Ltd.7 ingredients in the directory
Lianyungang Nuoxin Food Ingredient Co., Ltd.13 ingredients in the directory
Lianyungang Tongyuan Biotechnology Co., Ltd.11 ingredients in the directory
Qingdao Baotai Pure Food Technology Co., Ltd.16 ingredients in the directory
Qingdao Dawei Biological Engineering Co., Ltd.8 ingredients in the directory
Qingdao Jiutai Biotechnology Co., Ltd.8 ingredients in the directory
Runda Food Technology (Shandong) Co., Ltd.7 ingredients in the directory
Shandong Luhu Biological Technology Co., Ltd.9 ingredients in the directory- Shandong Ruiheng Biotechnology Co., Ltd.8 ingredients in the directory
- Shandong Sanxu Food Technology Co., Ltd.7 ingredients in the directory
Shandong Tongtaiweirun Food Science Tech Co., Ltd.9 ingredients in the directory
Tengzhou Aolong Chemical Co., Ltd.12 ingredients in the directory
Tengzhou Luhu Biological Technology Co., Ltd.6 ingredients in the directory
Tengzhou Tenglong Food Science And Technology Development Co., Ltd.5 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 Sodium Propionate
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 Sodium Propionate 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 Sodium Propionate together with other ingredients such as Calcium Propionate, Sodium Diacetate and Potassium Sorbate into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
Sodium Propionate carries the European food additive number E281. The substance is currently not permitted as a food additive in the European Union, where authorised propionate use is limited to calcium and potassium salts in defined bakery categories.
In the United States it is affirmed GRAS for direct food use under 21 CFR 184.1784, with no specific upper limit beyond good manufacturing practice. Like all propionates it is generally avoided in fermented foods because it can interfere with yeast and lactic-acid starter cultures.
JECFA evaluates the propionate family as a single toxicological group based on their conversion to free propionic acid, which is also produced endogenously in the human colon.
USP publishes a pharmacopoeial monograph. The substance is used in selected ophthalmic and topical antifungal preparations.
Manufacturing Process
Sodium propionate is made by neutralising propionic acid with sodium hydroxide or sodium carbonate in aqueous solution.
The propionic acid feedstock is produced industrially by hydroformylation of ethylene with carbon monoxide and hydrogen to give propanal, which is then oxidised to propionic acid. A smaller volume is produced by aerobic oxidation of propanol or by fermentation with Propionibacterium species.
The neutralisation is run close to the equivalence point so the finished salt has a near-neutral pH in solution. The clarified solution is decolorised with activated carbon and filtered.
The product is recovered by spray drying or by crystallisation followed by centrifugation and drying. Material is typically milled to a uniform powder before packaging under dry conditions.
