Preservative
Is E243 (Ethyl lauroyl arginate) halal?
A synthetic antimicrobial (LAE) on the UK authorised list as E243. Arginine is usually fermented; the synthesis uses ethanol. Muttoo does not call a solvent step verified-halal. Meat products that carry it still have a slaughter question.
A synthetic antimicrobial (LAE) on the UK authorised list as E243. Arginine is usually fermented; the synthesis uses ethanol. Muttoo does not call a solvent step verified-halal. Meat products that carry it still have a slaughter question.
What the sources say
E243 Ethyl lauroyl arginate — authorised food additive on the UK approved additives list.
E243 is made by esterifying arginine with ethanol, then reacting with lauroyl chloride. The code is not a certificate of the ethanol or the arginine.
Where you will run into it
- Heat-treated meat products
- Some ready meals
How to check it yourself
Arginine source and the ethanol used to esterify it. The E-number is identity, not a fatwa.
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 E243 in this product: is the source plant, synthetic, or animal? If animal, which species and slaughter method?
Quick facts
| E-number | E243 |
|---|---|
| Name | Ethyl lauroyl arginate |
| Also on labels as | LAE, lauric arginate, ethyl-N-lauroyl-L-arginate, E 243 |
| Additive class | Preservative |
| Classification | Source-dependent |
| Last verified | 2026-09-18 |
Common questions
Is E243 (Ethyl lauroyl arginate) halal?
Ethyl lauroyl arginate is classified as Source-dependent. A synthetic antimicrobial (LAE) on the UK authorised list as E243. Arginine is usually fermented; the synthesis uses ethanol. Muttoo does not call a solvent step verified-halal. Meat products that carry it still have a slaughter question.
Is Ethyl lauroyl arginate halal or haram?
On the evidence cited on this page, Ethyl lauroyl arginate 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 Ethyl lauroyl arginate called on ingredient labels?
It can appear as: LAE, lauric arginate, ethyl-N-lauroyl-L-arginate, E 243.
Why isn't there a single yes/no answer for E243?
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 e243-ethyl-lauroyl-arginate · last verified 2026-09-18 · report an error