PGA, or Propylene Glycol Alginate, is a food ingredient commonly used as a thickener, emulsifier, and stabilizer in various food products such as dairy products, salad dressings, and sauces. It is derived from alginic acid, which is extracted from brown seaweed, and propylene glycol, a synthetic organic compound.
PGA is valued for its ability to improve the texture, mouthfeel, and stability of food products, as well as its ability to form stable emulsions. It also acts as a humectant, helping to prevent the drying out of food products, and as a preservative, helping to extend the shelf life of certain foods.
Overall, PGA is a versatile and useful ingredient in the food industry, helping to create more appealing and stable food products.