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E405ThickenerLow concern
Propylene Glycol Alginate
In plain words
The short version
A modified alginate that stays soluble in acid — thickens dressings and stabilizes the foam head on beer.
Why it's green
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
Safety profile
ADI 70 mg/kg body weight (JECFA). The propylene glycol portion is metabolized normally; considered safe within that limit.
The detail
Educational information only. Not medical or dietary advice.