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Propylene glycol alginate

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Propylene glycol alginate is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.

Propylene glycol alginate (Wikipedia)

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.

Propylene glycol alginate
Names
Other names
Hydroxypropyl alginate,
Propane 1,2-diol alginate,
E405
Identifiers
ChemSpider
  • none
ECHA InfoCard 100.123.773 Edit this at Wikidata
EC Number
  • 618-414-0
E number E405 (thickeners, ...)
UNII
Properties
Molar mass 234.21 per structural unit (theoretical)
Appearance white to yellowish brown filamentous, grainy, granular or powdered forms
Soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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This article is about the food additive E405. For the Italian E405 locomotive, see FS Class E.405.
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