Monopotassium Phosphate (E340(i))

Monopotassium Phosphate

Monopotassium phosphate is an inorganic phosphate salt manufactured through controlled neutralization of phosphoric acid with potassium hydroxide, used as a buffering agent, sequestrant, low-sodium leavening acid, and mineral fortifier that stabilizes pH, chelates metal ions, and provides bioavailable potassium and phosphorus nutrition. In the food industry, it offers potassium enrichment without sodium addition, gentle acidity (pH 4.4-4.7 in solution), superior solubility for dry mixes, and heat stability up to 200°C ideal for reduced-sodium bakery, beverages, and protein-fortified formulations.

Food Industry Applications

• Bakery products: Functions as low-sodium leavening acid in baking powders reacting with sodium bicarbonate for controlled CO2 release at pH 6.0-7.0, improves dough handling in high-protein artisan breads, extends mold-free shelf life through pH stabilization at 5.0-5.5.

• Beverages: Buffers pH and sequesters iron/copper ions in powdered drink mixes, sports drinks, and energy beverages preventing oxidation and haze formation, maintains clarity through hot-fill processing at 85°C, provides potassium fortification without flavor impact.

• Processed meats: Enhances water binding and protein extraction in low-sodium poultry brines and sausages improving slice cohesion and yield retention, accelerates cure color development without off-tastes, heat-stable during cooking up to 75°C internal temperature.

• Dairy products: Stabilizes caseins in reduced-sodium processed cheeses and cheese sauces preventing texture breakdown, sequesters calcium ions improving meltability, provides clean buffering without metallic notes in milk powders.

• Nutritional products: Fortifies meal replacements, protein bars, and sports nutrition powders with 25% potassium and 50% phosphorus RDA contribution per gram, excellent solubility in cold reconstitution, neutral flavor profile.

• Dry seasoning blends: Improves flowability and anti-caking properties in spice mixes and bouillon powders, stabilizes flavors against moisture absorption, maintains free-flowing characteristics through 12-month ambient storage.

Other Industry Applications

In cosmetics, stabilizes emulsions and conditions hair as a buffering agent; in personal care, softens water and thickens formulations; in detergents, sequesters minerals for improved cleaning; in water treatment, controls scale and corrosion; in fertilizers, provides precise NPK nutrition.