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Seaweed E-numbers (Alginates, Carrageens and Agars)

In the European Community, "E" numbers have been given to food additives and these can be identified in food labels from these numbers. Elsewhere, however, they often pass under a variety of names that often seem to be designed to occlude their origin. Here are some of the seaweed E-numbers and a few of their uses. "Philippine-grade" carrageenan (often referred to as Philippine Natural Grade or PNG, or Processed Eucheuma Seaweed/PES in Europe) is a versatile, cost-effective hydrocolloid derived from red seaweeds (Kappaphycus alvarezii and Eucheuma denticulatum). It is used primarily as a stabilizer, thickener, and gelling agent in the food and pet food industries. More information.

Carrageen Moss Irish Moss

Please note that there is a lot of overlap in usage.

Product
E num-ber
Origin
Used as
Typical products
Alginates and various derivatives (e.g. Sodium alginate, Propylene glycol alginate) E400-405 Large brown seaweeds such as Laminaria hyperborea, Ascophyllum nodosum and Macrocystis  species Emulsifier, suspending, stabiliser, gelling agent, thickner. Ice-creams, milk shakes, instant desserts, custards. Suspending agent in soft drinks. Spreads and many others.
Agar E406 Mainly species of Gelidium, Pterocladia, and Gracilaria Emulsifier, stabiliser, gelling agent, thickner. Ice-creams, tinned goods, glazes for meats, etc.
Carrageenan E407 Mainly Eucheuma, Betaphycus, Kappaphycus, amd Chondrus crispus Emulsifier, stabiliser, gelling agent, thickner. Ice-creams, milk shakes, instant desserts, custards. Suspending agent in soft drinks. Spreads and many others.