Ingredient · E280

Propionic Acid

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers use propionic acid as a preservative to prevent mold and bacterial growth in …

What is Propionic Acid?

Propionic acid is a naturally occurring organic acid found in some foods like Swiss cheese. It is produced industrially by combining ethylene with carbon monoxide and water, or by the oxidation of propionaldehyde. It is a colorless liquid with a pungent odor.

Is Propionic Acid vegan?

Propionic Acid is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Propionic Acid gluten-free?

It does not contain gluten.

Is Propionic Acid a major allergen?

Propionic acid is not derived from any of the 9 major allergens recognized by the FDA.

What is Propionic Acid used for?

Manufacturers use propionic acid as a preservative to prevent mold and bacterial growth in baked goods like bread, tortillas, and pastries.

Is Propionic Acid safe?

In the U.S., propionic acid is generally recognized as safe (GRAS) by the FDA for use as a food preservative.

Why it's used

Manufacturers use propionic acid as a preservative to prevent mold and bacterial growth in baked goods like bread, tortillas, and pastries. It helps extend the shelf life of these products by inhibiting spoilage.

Health notes

In the U.S., propionic acid is generally recognized as safe (GRAS) by the FDA for use as a food preservative. International bodies like JECFA (Joint FAO/WHO Expert Committee on Food Additives) have evaluated propionic acid and its salts, establishing acceptable daily intake levels. Studies on animals have shown it to be relatively non-toxic at typical dietary levels.

Allergen info

Propionic acid is not derived from any of the 9 major allergens recognized by the FDA. It does not contain gluten.

Foods that contain Propionic Acid

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.