Emulsifier, thickener or gelling agent
Is E479b (Thermally oxidised soya bean oil interacted with mono- and diglycerides) halal?
A tin-grease / bakery release agent: soya oil reacted with mono- and diglycerides. The soya oil is plant; the mono- and diglycerides follow the E471 feedstock rule. This inherits source-dependent from E471 — it is not a verified-halal upgrade.
Halal when made from plant oil; haram when made from pork fat or non-zabiha animal fat. The label never says which — this is the most common doubtful additive in processed food.
What the sources say
Mushbooh, Halal if it is from plant fat, Haraam if it is from pork fat
The same code, E471, can be perfectly halal or clearly haram depending on whether it came from palm oil or pork fat.
E471 (Mono- and Diglycerides of Fatty Acids) can be derived from either plant oils (halal) or animal fats (requires verification).
E471 (mono- and diglycerides) is mashbooh — halal only if plant-sourced or halal-certified.
Ice Cream — Whey, Artificial flavor, Mono/Diglycerides
E479b Thermally oxidised soya bean oil interacted with mono- and diglycerides
Where you will run into it
- Baking tins
- Release agents
- Industrial bakery
How to check it yourself
Ask whether the mono- and diglycerides in this TOSOM are plant or animal.
What to ask the manufacturer
A recognised halal mark or a vegan declaration can settle this instead. If you email the brand, send one specific question:
For E479b in this product: is the fat from plant oil, synthetic, or animal? If animal, which species and was it slaughtered as halal?
Quick facts
| E-number | E479b |
|---|---|
| Name | Thermally oxidised soya bean oil interacted with mono- and diglycerides |
| Also on labels as | E479b, TOSOM |
| Additive class | Emulsifier, thickener or gelling agent |
| Classification | Source-dependent |
| Last verified | 2026-09-16 |
Common questions
Is E479b (Thermally oxidised soya bean oil interacted with mono- and diglycerides) halal?
Thermally oxidised soya bean oil interacted with mono- and diglycerides is classified as Source-dependent. Halal when made from plant oil; haram when made from pork fat or non-zabiha animal fat. The label never says which — this is the most common doubtful additive in processed food.
Is Thermally oxidised soya bean oil interacted with mono- and diglycerides halal or haram?
On the evidence cited on this page, Thermally oxidised soya bean oil interacted with mono- and diglycerides is source-dependent. Doubtful until the source is known (mashbooh) Every position is attributed to a named certifier or scholarly body with a link, so you can verify it directly.
What else is Thermally oxidised soya bean oil interacted with mono- and diglycerides called on ingredient labels?
It can appear as: E479b, TOSOM.
Why isn't there a single yes/no answer for E479b?
Because the ruling depends on information the label does not carry — the source material, the production route, or which scholarly position you follow. This page shows each named position with a link so you can check it yourself.
Where does this page's information come from?
Every position on this page is attributed to a named certifier or scholarly body with a direct link, listed under 'What the sources say'. Muttoo aggregates and cites; it does not issue rulings.
Record enumber-e479b-tosom · last verified 2026-09-16 · report an error