Propylene glycol alginate

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Propylene glycol alginate[1]
CAS number 9005-37-2 YesY
Molar mass 234.21 per structural unit (theoretical)
Appearance white to yellowish brown filamentous, grainy, granular or powdered forms
Solubility in water Soluble
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references
This article is about the food additive E405. For the Italian E405 locomotive, see FS Class E.405.

Propylene glycol alginate (PGA) is an emulsifier, stabilizer, and thickener used in food products. It is a food additive with E number E405. Chemically, propylene glycol alginate is an ester of alginic acid, which is derived from kelp. Some of the carboxyl groups are esterified with propylene glycol, some are neutralized with an appropriate alkali, and some remain free.[1]

See also[edit]


  1. ^ a b Propylene glycol alginate, Food and Agriculture Organization of the United Nations

External links[edit]