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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 brown seaweed.
Propylene glycol Alginate as a Food Additive
1. Propylene glycol alginate helps give products a smooth and natural texture and taste even under reduction conditions, such as in yogurt.
2. Propylene glycol alginate helps give products a glossy and smooth appearance.
3. Propylene glycol alginate can mix well with other ingredients and can be applied during the fermentation process in any range of pH value. Further, PGA improves dispersibility and solubility in products, and is heat stable.
4. Propylene glycol alginate not only acts as a stabilizing agent, but emulsifies.