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Dangerous Caution Safe

Uses: Alginates (E400 - E405) are also used as a thickening paste for colours in printing textiles, as a hardener and thickener for joining threads in weaving; the alginates may subsequently be dissolved away, giving special effects to the material.

Other uses include glazing and sizing paper, special printers' inks, paints, cosmetics, insecticides, and pharmaceutical preparations. In the USA alginates are frequently used as stabilisers in ice cream, giving a smooth texture and body, and also as a suspending agent in milk shakes.


Thickener and vegetable gum, derived from petroleum. Artificial sweetener base, preservative, used in germicides, paint remover and antifreeze. Allergic reactions but not enough tests done. See E1520 (propylene glycol).

Banned in France

Description: Propane-1,2-Diol Alginate is an insoluble colloidal acid in the form of a carboxylated polysaccharide that is abundant in the cell walls of brown algae (especially large kelp and wracks).

Used in jam, jellies and marmalades as defined in Directive 79/693/EEC and other similar fruit spreads including low-calorie products, an ingredient in antacid preparations (Gaviscon, Bisodol tablets, Asilone tablets Boots own etc) kelp is also available in tablet form as a dietary supplement.

Found in seaweed fertilizer preparations (approved by DEFRA's organic food standards but not by the Soil Association)

Permitted for use in animal feeds.

E405 Propane-1,2-Diol Alginate

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