Acidulants & Acidity Regulators
Fumaric Acid E297
Fumaric Acid is a high-impact organic food acid used by manufacturers that need controlled sourness, pH adjustment, dry-blend stability and formulation efficiency. As a food-grade acidulant and acidity regulator, it is commonly evaluated for beverages, confectionery, bakery systems, tortillas, sauces, dressings, seasoning blends and powdered mixes where acid strength, particle size, solubility behaviour and documentation quality are critical to industrial performance.
CAS 110-17-8
E / INS 297
C4H4O4
Food-grade sourcing
Specification-led purchasing
Product identity
| Product | Fumaric Acid |
| Category | Acidulants & Acidity Regulators |
| Function | Acidity regulator / acidulant / pH adjustment ingredient |
| E / INS number | E297 |
| CAS / identity | 110-17-8 |
| Chemical name | trans-butenedioic acid |
| Molecular formula | C4H4O4 |
| Typical form | White crystalline powder, fine powder or granular grade depending on supplier specification |
Application fit
Potential use areas may include:
- Powdered and ready-to-drink beverage bases
- Confectionery, gummies, jellies, hard candy and sour coatings
- Bakery systems, tortillas and controlled leavening blends
- Sauces, dressings, condiments and seasoning systems
- Dairy-style desserts, dry dessert mixes and fruit preparations
- Dry blends where low hygroscopic behaviour and storage stability are important
Industrial value for food manufacturers
Fumaric Acid is selected when the buyer needs more than a generic acidulant. In industrial formulation, the purchasing decision should consider acid strength, dissolution profile, particle size, compatibility with other acids or salts, processing sequence, final pH, taste release, storage humidity, packaging barrier and regulatory acceptance in the destination market. Because fumaric acid has limited water solubility compared with many common food acids, it can be especially valuable in dry systems, surface applications and controlled acid-release concepts where immediate full dissolution is not always desired.
Strong acidulant contribution
Fumaric Acid can deliver a pronounced sour profile and meaningful pH reduction at relatively low inclusion levels when compared by acid-equivalent contribution. This makes it useful during cost-in-use evaluation, flavour balancing and acid system optimisation.
Dry-mix stability
The material is often considered for powdered systems because suitable grades can support good dry handling, reduced caking risk and improved storage stability when moisture control and packaging barrier are properly managed.
Process control
Particle size, dispersion method and hydration time influence how quickly acidity develops in the finished system. This matters in beverage powders, bakery leavening blends, tortilla systems and confectionery coatings.
Clean specification review
For international purchasing, Fumaric Acid should be evaluated by assay, identity, ash, moisture, heavy metals, particle size, appearance, packaging, shelf life and conformity with the buyer's target market rules.
Technical specification checkpoints
Before issuing a purchase order, compare the offered grade against the finished product requirement and the buyer's internal quality standard. The values below are not a substitute for a supplier specification; they are practical checkpoints for technical and procurement teams.
- Grade confirmation
- Confirm food grade status, intended food additive function, E / INS number, CAS number, manufacturing origin and whether the offered material matches the buyer's destination-market requirements.
- Assay and identity
- Request declared assay range, identification method and reference standard used by the supplier. Lot-specific COA results should align with the approved specification.
- Particle size
- Particle size distribution affects dusting, dispersion, dissolution rate, dry blending, coating performance and mouthfeel in direct-contact applications such as sour sugar systems.
- Moisture and ash
- Loss on drying, residue on ignition or sulphated ash can influence storage behaviour, purity review and consistency across lots.
- Contaminants
- Review heavy metal limits, lead, arsenic or other market-specific parameters according to the buyer's regulatory scope and finished product category.
- Microbiological status
- For low-moisture crystalline acids, microbiological risk is often low, but manufacturers should still request available microbiological declarations if required by their HACCP, GFSI or customer approval process.
- Packaging integrity
- Confirm net weight, inner liner, bag type, pallet configuration, container loading quantity and whether packaging is appropriate for humidity-sensitive logistics.
- Shelf life and storage
- Ask for shelf-life statement, recommended storage temperature, humidity guidance and instructions for resealing opened bags in production environments.
Application guidance by food sector
The best use level and processing method must be validated by trial formulation. Fumaric Acid can behave differently depending on water activity, temperature, mixing energy, competing buffers, sugar solids, mineral salts, proteins, hydrocolloids and the target sensory profile.
Beverage powders and concentrates
Used for sourness, pH adjustment and flavour lift in fruit-flavoured powders, instant drink mixes and selected concentrates. Fine particle grades may improve dispersion, while granular grades may help handling and flow.
Confectionery and sour coatings
Evaluated for acid impact, delayed sour perception, coating stability and compatibility with sugars, flavours and colours. Particle size is especially important for mouthfeel and surface uniformity.
Bakery, tortillas and leavening systems
Can support pH control, dough conditioning and leavening reaction management when used with bicarbonates or other leavening components. Reaction timing should be confirmed under actual process temperature and moisture conditions.
Sauces, dressings and condiments
May be used as part of an acid system to adjust pH, sharpen flavour and support preservation hurdles. Complete dissolution and pH equilibrium should be checked before final filling or thermal processing.
Dessert mixes and dairy-style systems
Useful where controlled acidification, flavour definition or gel system performance is needed. Compatibility with proteins, starches, gums and mineral salts should be tested to prevent instability.
Seasonings and savoury snacks
Can contribute tangy, vinegar-style or fruit-acid notes in seasoning blends. Blending order, carrier selection and anti-caking strategy influence flowability and flavour distribution.
Formulation and processing considerations
| Technical factor |
Why it matters |
Practical buyer / R&D action |
| Solubility behaviour |
Fumaric Acid dissolves more slowly than highly soluble acids, which can be beneficial or limiting depending on the process. |
Run dissolution trials at actual temperature, Brix, mixing energy and residence time. |
| Particle size |
Fine powder can improve surface area but may increase dusting; granular material can improve flow but may dissolve more slowly. |
Request sieve analysis and test the offered grade in the final manufacturing sequence. |
| Acid blend design |
Fumaric Acid may be blended with citric, malic, tartaric, phosphoric or lactic acid systems to tune sourness and pH. |
Evaluate sensory curve, pH stability and cost-in-use rather than comparing only price per kilogram. |
| Buffering capacity of food matrix |
Proteins, minerals, cocoa, fruit solids and starch systems can resist pH change and alter dosage requirement. |
Measure final pH after equilibrium, after thermal process and through shelf-life where relevant. |
| Humidity exposure |
Moisture pickup can affect flowability, caking, acid release and blending uniformity. |
Use moisture-controlled storage, sealed liners and first-in-first-out stock rotation. |
| Regulatory status |
Permission and maximum use depend on food category, destination market and final label claim. |
Verify local food additive legislation before commercial launch or export. |
Comparison with other food acids
Fumaric Acid should be compared by performance in the final formulation, not only by purchase price. Sensory intensity, acid equivalent, solubility, particle size and processing conditions can change the real cost-in-use.
| Acidulant |
Typical industrial reason to evaluate |
Key difference to check |
| Fumaric Acid |
Strong sour impact, dry blend suitability, controlled dissolution and use in bakery, confectionery and selected beverage systems. |
Lower solubility means process validation is important, especially in liquid systems. |
| Citric Acid |
Broadly used acidulant with high solubility and familiar citrus-type acidity. |
Often easier to dissolve, but the sensory profile and dosage may differ. |
| Malic Acid |
Fruit-like sourness and smooth acidity in confectionery, beverages and fruit systems. |
Can provide a different sourness curve and mouthfeel effect. |
| Tartaric Acid |
Sharp acidic profile, confectionery applications and leavening systems. |
Check regulatory acceptance, taste target and reaction timing in bakery or dry mixes. |
| Phosphoric Acid |
Strong acidification in cola-type beverages and selected liquid systems. |
Liquid handling, mineral contribution and label expectations differ from organic dry acids. |
Quality assurance and supplier approval
For repeat purchasing, Fumaric Acid should be approved through a controlled vendor qualification process. The buyer should keep an approved specification, supplier questionnaire, COA history, change-control expectation and traceability documentation on file.
COA review
Match every shipment against the approved specification. Check batch number, manufacturing date, expiry or retest date, assay, identity and declared impurities before releasing material to production.
Traceability
Request lot traceability from manufacturer to shipment. For export orders, align invoice, packing list, certificate of origin and batch documents before dispatch.
Food safety system
Ask whether the production site operates under recognised food safety or quality systems such as HACCP, ISO 22000, FSSC 22000, BRCGS, IFS or equivalent customer-accepted programmes.
Declarations
Depending on the market, buyers may request allergen, GMO, vegan, halal, kosher, residual solvent, irradiation, nanomaterial, animal-origin, gluten and contaminant declarations.
Packaging, storage and logistics
Food-grade Fumaric Acid is commonly supplied in lined multiwall bags or equivalent industrial packaging. Final packaging depends on supplier, destination, transport mode and buyer requirements. For container shipments, confirm palletisation, stretch wrapping, container loading quantity, humidity exposure, documentation cut-off and customs requirements before confirming the order.
Typical packing
Common commercial options include 25 kg net bags with inner liner, palletised or non-palletised. Alternative pack sizes may be possible depending on supplier and order quantity.
Storage guidance
Store in a cool, dry, well-ventilated area away from moisture, incompatible materials and strong odours. Keep bags sealed until use and reseal opened bags promptly.
Export preparation
For international shipments, align HS code guidance, country of origin, batch documents, label language, shelf-life remaining, fumigation status and customer import requirements before loading.
Lead-time control
Share forecast volume, first order quantity, target dispatch date and required Incoterms early. This improves allocation planning, document preparation and freight coordination.
Documents to request
- Product specification or technical data sheet
- Lot-specific certificate of analysis
- Safety data sheet where applicable
- Food-grade statement and intended-use declaration
- Country of origin and manufacturer information
- Shelf-life, expiry or retest-date statement
- Storage and handling instructions
- Packaging specification and pallet configuration
- Allergen, GMO, vegan, halal or kosher statement if required
- Heavy metals and contaminant declaration where required
- Change-control or notification policy for repeat supply
- Market-specific declarations requested by the destination country
Important: product availability, permitted use, claims, labelling and maximum levels depend on supplier, origin, destination market, food category and customer responsibility. Buyers should verify regulatory status and final suitability for the intended application before commercial use.
How to request this product
Send the product name, target grade or reference specification, quantity, destination country, preferred packaging, expected shipment date, Incoterms, application area and required documents. If you already purchase Fumaric Acid, attach or describe your existing specification, label, supplier COA or particle-size requirement so available options can be compared accurately.
Recommended inquiry format
Example: “We need food-grade Fumaric Acid E297, 25 kg bags, one 20-foot container or 5 MT trial quantity, destination: UAE / Saudi Arabia / EU / USA, application: beverage powder or confectionery, required documents: TDS, COA, SDS, halal, GMO statement, allergen statement, origin certificate and shelf-life declaration. Please quote FOB / CIF / CFR with lead time.”