Emulsifier, thickener or gelling agent

Is E424 (Curdlan) halal?

Curdlan is a bacterial β-1,3-glucan made by fermentation, used to set noodles and meat analogues. The organism is not an animal; a named certifier page on this code is still missing.

UnverifiedNot enough reliable source evidence to classify

Fermentation polysaccharide. Searchable identity only — not verified-halal by analogy with other gums.

What we know

The name is in the catalogue so you can find it. There is not enough evidence to classify.

What we don’t know

No external A or B source (certifier or scholarly page) is on file yet.

Why it matters

Not enough reliable source evidence to classify

What to verify

For E424 in this product: is the fat from plant oil, synthetic, or animal? If animal, which species and was it slaughtered as halal?

The detail

Codex lists curdlan as a gelling agent produced by bacterial fermentation. That production route is the same family as xanthan, which already has a page. This code was a hole in the table.

Source

E424 curdlan is a bacterial fermentation gum listed in Codex INS. No class ruling cited.
Insufficient Evidence Muttoo catalogue desk (certifier reference table · accessed 2026-09-16)

Classification as published in the Halal Authority India food ingredient numbers reference, the additive table used by halal certifiers across South Asia. Cross-checked against the IFANCA Halal Shopper's Guide.

Where you will run into it

How to check it yourself

Fermentation gums are not gelatin. Still confirm no gelatin blend on the same line.

Quick facts

E-numberE424
NameCurdlan
Also on labels asE424, beta-1,3-glucan curdlan, bacterial curdlan
Additive classEmulsifier, thickener or gelling agent
ClassificationInsufficient evidence
External A/B sourceNone yet

Common questions

Is E424 (Curdlan) halal?

Curdlan is classified as Insufficient evidence. Fermentation polysaccharide. Searchable identity only — not verified-halal by analogy with other gums.

Is Curdlan halal or haram?

On the evidence cited on this page, Curdlan is insufficient evidence. Not enough reliable source evidence to classify Every position is attributed to a named certifier or scholarly body with a link, so you can verify it directly.

What else is Curdlan called on ingredient labels?

It can appear as: E424, beta-1,3-glucan curdlan, bacterial curdlan.

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.

Related lookups

Record e424-curdlan · report an error