YenzoWhat is E477 (propane-1,2-diol esters of fatty acids)?
E477 stands for propane-1,2-diol esters of fatty acids. Appendix 1 of Circular 24/2019/TT-BYT lists these functions: emulsifier.
E477Propane-1,2-diol esters of fatty acids
E477 stands for propane-1,2-diol esters of fatty acids. Appendix 1 of Circular 24/2019/TT-BYT lists these functions: emulsifier.
Did you know? According to EFSA, E 477 can be manufactured by transesterification of hydrogenated fats and/or oils.
- Code
- E477 · INS 477
- Group
- Emulsifier
In Vietnam✓ PermittedOn the list of permitted additives — Circular 24/2019, Appendix 1
Risk level on the Yenzo Scalelow?Based on the Open Food Facts additives taxonomy
How E477 appears on labels
IngredientsIllustrative example
Wheat flour, vegetable oil, salt, sugar, emulsifier (477), dried onion and garlic, pepper, natural colour (160a).
emulsifier (477)emulsifier 477E477INS 477On Vietnamese labels: Este của propylen glycol với acid béo
Propane-1,2-diol esters of fatty acids in food
Flavoured milk drinksEdible ices and fruit ice creamFat spreads
Vegetable oils and fats
Chewing gumCooked pasta and noodlesBaked goodsFlavoured drinksDairy dessertsQuestions about propane-1,2-diol esters of fatty acids
Is a propylene glycol ester harmful?
In 2018 EFSA confirmed an ADI of 25 mg/kg body weight per day, expressed as propane-1,2-diol, which corresponds to an ADI of 80 mg/kg body weight per day for E 477. EFSA concluded there is no safety concern at the reported use levels because estimated exposure (refined non-brand-loyal scenario) did not exceed the ADI in any population group.
Is E477 permitted in Vietnam?
Yes. INS 477 (propane-1,2-diol esters of fatty acids) is listed in Appendix 1 of Circular 24/2019/TT-BYT, the list of additives permitted in food.
Other emulsifiers
E473Sucrose esters of fatty acidslowE474SucroglycerideslowE475Polyglycerol esters of fatty acidslowE476Polyglycerol polyricinoleate (PGPR)lowE479bThermally oxidised soya bean oil with mono- and diglycerideslowE481Sodium stearoyl-2-lactylatelow
See all emulsifiers →Updated 21 October 2026
Sources (3)
- 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:e477)
- Thông tư 24/2019/TT-BYT (văn bản hợp nhất 09/VBHN-BYT), Phụ lục 2A: nhóm thực phẩm được phép dùng INS 477
- EFSA Journal (2018). Re-evaluation of propane-1,2-diol esters of fatty acids (E 477) as a food additive