Acetylated Starch
Thickeners & StabilizersCAS: 9045-28-7
This is what the ingredient is.
Acetylated starch is modified starch treated with acetic anhydride to improve stability and texture.
Here is why it shows up on the label.
Used as thickener and stabilizer with improved freeze-thaw stability. Found in frozen foods and dressings.
Here is what food agencies say.
FDA GRAS as modified food starch. European food agencies allow it (E1420/E1422). It is permitted in many countries worldwide.
Here is what research has found.
an FAO/WHO expert committee evaluated safety. Modification provides functional benefits. Well-tolerated.
Here are a few things worth knowing.
Generally safe. Modified starch category. No specific concerns.
Sources
- FDA CFR 21
- EFSA Panel
- JECFA Monograph
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.
v1.0Updated 9/12/2026