Propyleneglycol alginate (PGA) is a kind of new-style excellent food additive. It’s made of Alginic Acid by deeply processing which extracted from natural Brown Seaweed. PGA is white or light yellow powder, almost tasteless or a little fragrance, soluble in water and forms sticky and colloidal solution, insoluble in ethanol and other organic solvent.
Because of its hydrophilism and lipophilicity, PGA has emulsifying ability and can be as foam stabilizer, it can steady the ioly gel. Also PGA has acid fastness. Because PGA is non ionic compound, so it’s stable to metal ions and don’t solidify or separate out. PGA is widely used in food and pharmaceutical field.

Application Area:
1. In food industry,
As thickening agent, stabilizer and emulsifier, PGA is used in yogurt and ice cream, the surface of the product is smooth without concavo-convex, with full-bodied mouth feel.
As thickening and emulsifying agent, used in cheese and other milk products, the expansion and emulsifying effect is quite good with comfortable mouth feel.
As foam stabilizer used in beer, its foam is pure white, fine and smooth, and will keep longer time.
As the acid proof agent, emulsifying agent and dispersing agent used in all kinds of fruits juice beverage, the products will not precipitate or laminate, and the oil composition is stable.
As the modifying agent, PGA can be used in flour, noodles and convenience food etc. Moreover, it can also be used in tomato sauce, meat sauce, soy sauce, emulsion flavor, syrup and sugar-coating etc.
2. In medical industry,
PGA can be used as stabilizer for X optical contrast agents, protective agent for Gastrointestinal mucosa, and the monomer for cosmetic material.