Barley Gluten
Barley gluten contains the storage protein hordein, which is a gluten-equivalent protein triggering celiac disease. Barley is a regulated cereal allergen in the US and EU and must be declared.
What it is
The protein fraction (hordein) extracted from barley grain; structurally related to wheat gluten.
Binder and protein source; texture in baking.
Why it's flagged
- Triggers celiac disease in susceptible individuals
- Contains hordein
What regulators actually say
"The term 'gluten' means the proteins that naturally occur in a gluten-containing grain ... Gluten-containing grain means any one of the following grains or their crossbred hybrids ...: (i) Wheat ...; (ii) Rye; (iii) Barley."
Regulatory status
United States — FDA
Barley regulated as gluten-containing grain under 21 CFR 101.91
European Union — EFSA
Cereals containing gluten (including barley) are regulated allergens under EU 1169/2011
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