YenzoWhat is E517 (ammonium sulphate)?
E517 is ammonium sulphate, INS number 517.
E517Ammonium sulphate
E517 is ammonium sulphate. Circular 24/2019/TT-BYT has no row for INS 517 in Appendix 1, the list of additives permitted in food.
- Code
- E517 · INS 517
In VietnamNot on Vietnam's list of permitted additivesNot on Vietnam's list of permitted additives (Circular 24/2019); it may be used only in a product whose declaration is registered with the Vietnam Food Administration
Risk level on the Yenzo Scalevery low?Based on the Open Food Facts additives taxonomy
How E517 appears on labels
IngredientsIllustrative example
Wheat flour, vegetable oil, salt, sugar, flour treatment agent (517), dried onion and garlic, pepper, natural colour (160a).
flour treatment agent (517)flour treatment agent 517E517INS 517
Questions about ammonium sulphate
Is ammonium sulphate harmful?
In 2019 EFSA concluded that exposure to sulphate from sulphuric acid and its sodium, potassium, calcium and ammonium salts (E513–E517) does not raise a safety concern at the reported uses and use levels, and that there is no need for a numerical ADI. EFSA noted that mean and 95th percentile exposure are far below the 300 mg/kg dose that caused a laxative effect in humans.
Is E517 permitted in Vietnam?
It was not found. Appendix 1 of Circular 24/2019/TT-BYT (consolidated text 09/VBHN-BYT), the list of additives permitted in food, has no row with INS 517, and neither does Appendix 2B.
Other flour treatment agents
E472Esters of mono- and diglycerides of fatty acidslowE481Sodium stearoyl-2-lactylatelowE482Calcium stearoyl-2-lactylatelowE483Stearyl tartratelowE516Calcium sulphatevery lowE529Calcium oxidevery low
See all flour treatment agents →Updated 21 October 2026
Sources (4)
- Open Food Facts additives taxonomy (Yenzo's table cites no EFSA opinion for this code). Open Food Facts additives taxonomy, https://github.com/openfoodfacts/openfoodfacts-server/blob/main/taxonomies/additives.txt (entry en:e517)
- Thông tư 24/2019/TT-BYT (văn bản hợp nhất 09/VBHN-BYT), Phụ lục 1
- EFSA Journal (2019). Re-evaluation of sulphuric acid and its sodium, potassium, calcium and ammonium salts (E 513, 514 (i), 514 (ii), 515 (i), 515 (ii), 516 and 517) as food additive
- Codex CAC/GL 36-1989 (Rev. 2008, Amd. 2015), Section 3: INS 517 Ammonium sulfate