1. Food Industry: As a thickener, stabilizer, and gelling agent
Ammonium alginate is a food additive approved for use in many countries and regions (such as the EU E403). In food, it is mainly used to improve texture, mouthfeel, and stability.

• Confectionery, Jams and Condiments: Used in jams, jellies, and sauces to increase viscosity and prevent separation, at a concentration of approximately 0.4% of the total food weight.

• Dairy Products and Desserts: Used in ice cream, milkshakes, gelatin puddings, and sweet sauces to create a smooth texture, prevent ice crystal formation, and enhance resistance to separation, at a concentration between 0.1% and 0.5%.

• Baking and Noodle Products: Added to bread, cakes, and noodles to improve texture and flavor, and increase raw material utilization, at a concentration of approximately 0.05% of the total raw material weight.

• Meat Products and Canned Goods: Used in meat sauces, pie fillings, and processed seafood products to provide binding properties, prevent moisture leakage, and maintain product shape and freshness.

• Other Foods: According to the Codex Alimentarius standards, it is also permitted for use in dried pasta, heat-treated fermented yogurt, frozen fish products, and other categories.

2. Pharmaceutical Field: As an excipient and component of medical dressings
• Pharmaceutical Excipient: In pharmaceuticals, ammonium alginate can be used as a binder, emulsifier, film-forming agent, and viscosity control agent.

• Wound Care Dressings: This is an important specialized medical use. Ammonium alginate is a key component of alginate wound dressings (e.g., the product “Kaltostat”). When in contact with wound exudate, it absorbs fluid and forms a soft gel, providing a moist healing environment for the wound, while promoting hemostasis and reducing pain during dressing changes.

3. Daily Chemical and Textile Industries
• Cosmetics: Used as an emulsifying stabilizer and viscosity regulator in lotions, creams, and other products, typically at a concentration between 0.1% and 1%. • Textile Printing and Dyeing:

Used as a thickening agent in printing pastes, improving dye adhesion and print clarity. The typical dosage is 1%-3% of the total paste weight.

Used as a warp sizing agent, increasing fabric strength and reducing warp breakage during the weaving process.

• Paper Industry: Used as a sizing agent for paper to improve paper strength and whiteness.

4. Other and Emerging Fields
• Chemical and Environmental Protection: In chemical production, it can be used as a reaction catalyst or viscosity modifier; in wastewater treatment, its flocculating properties help purify water.

• Scientific Research: Studies have shown that alginate and its derivatives exhibit potential in terms of biological activity, such as possible anti-tumor, antibacterial, immunomodulatory, and neuroprotective effects, but these are mostly still in the research stage.