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E1451 – Acetylated Oxidized Starch

E1451 is a modified food additive (acetylated oxidized starch) used as a thickener and stabilizer in a wide range of processed food products.

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Things worth knowing about "E1451"

E1451 is a modified food additive (acetylated oxidized starch) used as a thickener and stabilizer in a wide range of processed food products.

What is E1451?

E1451, known as acetylated oxidized starch, is a chemically modified starch-based food additive. It is produced through a two-step chemical process applied to natural starch: first an oxidation step, followed by an acetylation step. These modifications give the starch improved functional properties, making it highly suitable for use in processed foods.

Origin and Production

The raw material for E1451 is natural starch, commonly derived from corn, wheat, potato, or tapioca. In the first step, the starch is treated with an oxidizing agent to break down the molecular structure and reduce viscosity. In the second step, acetylation introduces acetyl groups into the starch structure. These changes improve stability, film-forming ability, and performance across a range of temperatures and processing conditions.

Uses in Food

E1451 is used in a wide variety of processed food products. Typical applications include:

Sauces and dressings
Soups and stews
Baked goods and confectionery
Dairy products and desserts
Frozen foods
Snack products and ready meals

In these products, E1451 functions as a thickener, stabilizer, and gelling agent. It improves texture, ensures a consistent product consistency, and gives foods an appealing appearance.

Mechanism of Action and Functional Properties

Compared to native starch, acetylated oxidized starch offers several advantageous technological properties:

Lower gelatinization temperature: E1451 forms a stable gel at lower temperatures, making food processing easier.
High clarity: Gels and pastes made with E1451 are often clearer than those made with native starch.
Improved freeze-thaw stability: E1451 resists the retrogradation process better than native starch, making it ideal for frozen food products.
Film-forming ability: E1451 can form thin, stable films, making it suitable for coatings and encapsulation applications.

Approval and Safety

Within the European Union, E1451 is an approved food additive regulated under Regulation (EC) No 1333/2008 on food additives. The European Food Safety Authority (EFSA) has evaluated E1451 and concluded that it is safe for use at the permitted levels. A specific Acceptable Daily Intake (ADI) value was deemed unnecessary, as no toxicological concerns were identified at typical use levels.

E1451 is generally considered well tolerated according to current scientific evidence. No significant allergenic properties have been identified. However, individuals with an intolerance to starch or an allergy to the source material (e.g., wheat) should carefully check the ingredient list of products containing this additive.

Labeling

Under European food law, E1451 must be declared in the ingredient list of a product either by its E-number code E1451 or by its full name acetylated oxidized starch. This allows consumers to identify whether this additive is present in a product.

References

European Food Safety Authority (EFSA): Scientific Opinion on the re-evaluation of oxidised starch (E 1404), monostarch phosphate (E 1410), distarch phosphate (E 1412), phosphated distarch phosphate (E 1413), acetylated distarch phosphate (E 1414), acetylated starch (E 1420), acetylated distarch adipate (E 1422), hydroxypropyl starch (E 1440), hydroxypropyl distarch phosphate (E 1442), starch sodium octenyl succinate (E 1450), acetylated oxidised starch (E 1451) and starch aluminium octenyl succinate (E 1452). EFSA Journal, 2017.
Regulation (EC) No 1333/2008 of the European Parliament and of the Council of 16 December 2008 on food additives. Official Journal of the European Union.
BeMiller, J. N. & Whistler, R. L. (Eds.): Starch: Chemistry and Technology. 3rd Edition. Academic Press, 2009.

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