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E200 Sorbic Acid – Food Preservative Explained

E200 is the EU food additive code for sorbic acid, a naturally occurring preservative that protects food from mould, yeasts, and bacteria.

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Things worth knowing about "E200"

E200 is the EU food additive code for sorbic acid, a naturally occurring preservative that protects food from mould, yeasts, and bacteria.

What is E200?

E200 is the European Union designation for sorbic acid (chemical name: hexa-2,4-dienoic acid), an organic acid used as a food preservative. It occurs naturally in the berries of the rowan tree (Sorbus aucuparia), but is produced synthetically for commercial use. Sorbic acid is one of the most widely used food preservatives in the world.

Function and Applications

E200 is added to food products to prevent spoilage caused by microorganisms. It inhibits the growth of moulds, yeasts, and certain bacteria, thereby extending the shelf life of a wide range of products.

Cheese and dairy products
Baked goods and bread
Wine and fruit wine
Jams, jellies, and marmalades
Salad dressings and mayonnaise
Dried fruits and vegetables
Cosmetics and personal care products (outside of food use)

Mechanism of Action

Sorbic acid exerts its antimicrobial effect by penetrating microbial cells in its undissociated form and disrupting key enzymatic reactions involved in cellular metabolism. It is most effective in acidic environments (pH 3–6), where it predominantly exists in its undissociated state. In particular, it interferes with the energy metabolism of fungi and yeasts by blocking certain dehydrogenase enzymes.

Regulatory Approval

E200 is approved for use in the European Union under Regulation (EC) No 1333/2008 on food additives. Maximum permitted levels are defined for specific food categories. The European Food Safety Authority (EFSA) has assessed the safety of sorbic acid and established an Acceptable Daily Intake (ADI) of 3 mg per kg of body weight per day.

Safety and Tolerability

Sorbic acid is generally considered safe and well tolerated. In the human body, it is metabolized in a manner similar to other fatty acids and is fully broken down into water and carbon dioxide. It is regarded as one of the best-tolerated preservative acids used in food.

Possible Intolerances

In rare cases, sensitive individuals may react to sorbic acid. Reported reactions include:

Skin irritation or contact dermatitis following direct skin contact (more common with topical cosmetic use)
Pseudo-allergic reactions in highly sensitive individuals (e.g., those with known aspirin intolerance)
Occasional gastrointestinal discomfort at very high intake levels

A true IgE-mediated allergy to sorbic acid is extremely rare and is barely documented in the scientific literature.

Labelling Requirements

Foods containing E200 must declare it in the ingredient list in accordance with EU labelling regulations, either as E200 or as sorbic acid. This allows consumers to make informed purchasing decisions.

Related Additives

E200 belongs to the group of sorbates. Related food additives include:

E201 – Sodium sorbate (sodium salt of sorbic acid)
E202 – Potassium sorbate (commonly used salt, more water-soluble than sorbic acid)
E203 – Calcium sorbate (calcium salt of sorbic acid)

All of these compounds release sorbic acid within the food matrix and share the same underlying mechanism of action.

References

European Food Safety Authority (EFSA): Re-evaluation of sorbic acid (E 200), potassium sorbate (E 202) and calcium sorbate (E 203) as food additives. EFSA Journal, 2015.
Regulation (EC) No 1333/2008 of the European Parliament and of the Council of 16 December 2008 on food additives.
Brul, S. & Coote, P.: Preservative agents in foods – mode of action and microbial resistance mechanisms. International Journal of Food Microbiology, 1999.

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