Malic Acid
Fumaric Acid
Maleic Anhydride
Contact Us
Corporate Info
Self-Teaching Guide

A Naturally Occurring Acid with Unique Advantages

Fumaric acid is an organic acid widely found in nature. In humans and other mammals, Fumaric acid is a key intermediate in the tricarboxylic acid cycle for organic acid biosynthesis (the KREBS cycle). Fumaric acid is also an essential ingredient in plant life.

Fumaric acid is the strongest organic food acid in titratable acidity and in sourness.

Natural and synthetically produced Fumaric Acids have the same molecular structure. Bartek Fumaric Acid is made from N-Butane that is oxidised to Maleic acid that is then isomerized to Fumaric acid.

Benefits Of Fumaric Acid

Long Lasting Sour Taste at pHs less than 4.5
Fumaric acid's hydrophobic nature results in persistent, long lasting sourness and flavour impact.
Lower pH with Minimal Sourness at pHs greater than 4.5
In food and beverage products with a pH greater than 4.5, Fumaric acid decreases the pH with minimal added sourness.
Greater Buffering Capacity at pH 3.0
Fumaric Acid has more buffering capacity than other food acids at pHs near 3.0 - this is due to its pKa1 and to its low molecular weight.
Anti-microbial Effects at Low pHs
Fumaric acid lowers pH in foods and beverages - this enhances the effectiveness of anti-microbial ingredients. In addition, undissociated Fumaric Acid that is present at low pHs has a bactericidal effect against E.Coli O157:H7.
Improves Dough Machinability
Fumaric acid blocks or breaks gluten disulphide bonds - this improves dough machinability in wheat flour doughs.
Delayed Action Leavening Acid
Granular Fumaric acid dissolves during baking and generates carbon dioxide by reaction with sodium bicarbonate. Fumaric acid has a higher neutralisation value than other delayed action leavening acids.
Fumaric acid absorbs virtually no atmospheric moisture - it stays dry and free flowing. Dry-mix products will not cake or harden, even during high humidity storage conditions, when Fumaric acid is used as the acidulant.
Better Flavour Stability
Fumaric acid does not absorb moisture that degrades flavour ingredients in dry mix products.
Lower Ingredient Cost
Ingredient cost is reduced when using Fumaric acid for two reasons. Fumaric acid is stronger than all other organic food acids in terms of sourness, acid equivalent weight and pH values - therefore, less can be used. In addition, Fumaric acid is more economical than other food acids on a cost per unit weight basis.
Lower Packaging Material Cost for Dry Mixes
For dry mixes, packaging material cost is decreased due to reduced moisture barrier requirements and because a smaller package can be used (the unit weight of the dry mix package can be lowered because less acidulant is used).


Fumaric acid has been used in food and beverage products since 1946. It is currently used in wheat and corn tortillas, sour dough and rye breads, refrigerated biscuit doughs, fruit juice and nutraceutical drinks, gelatin desserts, gelling aids, pie fillings and wine. Food research shows that Fumaric acid improves quality and reduces costs of many food and beverage products. It is also used in animal feed.



Fumaric Acid lowers the pH of the tortilla dough, thereby improving a mold inhibitor's (e.g. calcium propionate) effectiveness. Shelf life of dry tortilla mixes is extended because Fumaric Acid does not absorb moisture during storage and distribution. In wheat flour tortillas, fumaric acid accelerates the cleavage of disulphide bonds between gluten protein molecules during dough kneading. The result is more easily machined dough and faster production rates. Added cost savings are realised since leavening acids can be replaced with Fumaric acid.


Fumaric acid acts as an instant flavouring agent for rye and sourdough breads. Fumaric acid is simply added to the dough ingredients during the dry blending step. Flavour intensity is easily controlled by the amount of Fumaric acid added to the recipe. In English muffins, Fumaric acid significantly increases porosity. Dough machinability is improved and more sourness is provided per unit weight.


Fruit Juice Drinks

Fumaric acid provides more sourness per unit weight than other acidulants used in fruit juice drinks. This substantially reduces the acidulant cost. In fruit juice drinks, Fumaric acid provides more buffering capacity than other acidulants when the pH is near 3.0. Using Fumaric acid helps to stabilise the pH of a fruit juice drink, which in turn stabilises colour and flavour.
Fumaric Acid in combination with Sodium Benzoate was shown to have a bactericidal effect against E.Coli O157:H7 in apple cider at pHs 3.2-3.4.
Fumaric Acid would help juice processors achieve the mandated 5-log pathogen reduction.


Fumaric Acid can economically acidify wine with no detectable difference in flavour. The replacement ratio of three pounds of Fumaric acid to five pounds of Citric acid can significantly reduce acidulant cost. Fumaric acid also prevents secondary fermentation after bottling and can act as a clarifier when low concentrations of copper and iron are present in the wine.


Fumaric acid extends the shelf life of acid coated candies because it does not absorb moisture during storage and distribution. Maintaining a low moisture level retards sucrose inversion. Acidulant cost is also reduced as Fumaric acid provides more sourness per unit weight than other acidulants used in dry form.

Jellies and Jams

Fumaric acid can cut food acid costs when used as an acidulant for jams, jellies and preserves. As little as two pounds of Fumaric acid can be used to replace every three pounds of Citric, Malic or Tartaric acid. At the 2:3 replacement ratio, Fumaric acid does not produce significant differences in gel strength or pH.


Alginate Based Desserts

Fumaric acid is an economical acidulant that liberates calcium. It improves smoothness and optimises setting times. Also, the non-hygroscopicity of Fumaric acid means that dry dessert mixes remain free flowing, even in high humidity. Fumaric acid can be added directly to the dry dessert mix during manufacture without causing degradation of flavour ingredients because of its non-hygroscopic nature.

Gelatin Desserts

Fumaric acid significantly reduces acidulant costs in gelatin desserts. Depending on the product recipe, each pound of Citric acid can be replaced with 0.6 to 0.7 pounds of Fumaric acid. Reducing moisture pick-up improves flavour stability and lengthens shelf life. Fumaric acid maintains non-caking and free-flowing qualities. By keeping the moisture content low, Fumaric acid helps to maintain the stability of flavour components and markedly decreases inversion of sucrose in the packaged dry mix. It may also be possible to use less expensive packaging if other moisture-sensitive ingredients are not being used in the product formulation. Fumaric acid also increases gel strength, so food processors may reduce normal gelatin content by about 2%.

Pie Fillings

In pie fillings, Fumaric acid can be mixed directly with the starch and sugar ingredients as it is non-hygroscopic. Fumaric acid lowers costs by reducing the quantity of food acid needed in product formulations. Fumaric acid also improves smoothness and extends the critical cook times for optimum gelation.

Egg White Foams

Fumaric acid can promote maximum volume in both egg-white foams and end products based on egg-white foams. Fumaric acid can replace the more expensive cream of tartar to control egg-white volume. With Fumaric acid, egg whites can be overbeaten for as much as double the customary optimum time. Well suited for continuous flow processes, Fumaric acid can be added to both liquid and dried egg whites.

Cleaning Agents for Dentures/Bath Salts

The carbon dioxide generating compounds containing NaHCO3, K2CO3 and powdered Fumaric acid can be tableted with other ingredients to make cleaning agents for dentures and bath salts.

Animal Feed

Fumaric acid has proven to be a particularly effective additive to piglet feed during the post-weaning period. The inclusion of Fumaric acid and the resultant adjustment of the pH value demonstrate improved weight gain, food consumption and feed conversion ratio.

Industrial Uses

Industrial uses of Fumaric acid include:
  • Unsaturated Polyester
  • Alkyd Resins
  • Printing Inks
  • Paper Sizing
Product Bulletins
Spec Sheets
Nutritional Value