Fumaric Acid (E297)

Type of additive
(Glossary)
Acidity Regulators, Flavoring Agents, Preservatives
E NumberE297
Chemical FormulaC4H4O4
Also Known AsTrans-butenedioic acid
Allomaleic acid
Boletic acid
Donitic acid
Lichenic acid

Purpose and Function

Fumaric Acid (E297) is used in the food industry as an acidity regulator and flavor enhancer. It provides a tart taste and helps maintain the desired pH level in various food products. It is known for its strong acidity and long-lasting sourness. Common applications include:

  • Beverages: Used in fruit-flavored drinks, powdered beverages, and energy drinks to enhance tartness and regulate acidity.
  • Confectionery: Commonly added to sour candies, gummies, and other sweets for a long-lasting sour taste.
  • Baked goods: Helps leavening agents like baking soda to function effectively, especially in products such as rye bread and tortillas.
  • Desserts and gelatin products: Used in desserts, jams, and gelatin-based products to stabilize acidity and improve flavor.
  • Dry drink mixes: Due to its low moisture absorption, fumaric acid is suitable for powdered products.

Fumaric Acid (E297) occurs naturally in some fruits and vegetables and is also produced synthetically for food use.


Potential Risks and Side Effects

Fumaric Acid (E297) is generally recognized as safe when used within regulated limits, but there are some considerations:

  • Digestive discomfort: In large amounts, fumaric acid may cause stomach irritation or digestive discomfort, especially for individuals with sensitive gastrointestinal systems.
  • Skin and eye irritation: In its pure form, fumaric acid can be an irritant; therefore, handling concentrated forms should be done with care.
  • Regulatory approval: It is approved for use in many countries, including the European Union, the United States, and others, where it is considered safe within specified limits.

Overall, Fumaric Acid (E297) is regarded as a safe and effective acidity regulator and flavoring agent.