What is the role of STPP?

STPP is a preservative for seafood, meats, poultry, and animal feeds. It is common in food production as E number E451. In foods, STPP is used as an emulsifier and to retain moisture. Many governments regulate the quantities allowed in foods, as it can substantially increase the sale weight of seafood in particular.

How harmful is sodium tripolyphosphate?

Eating too many foods containing sodium phosphate additives can raise phosphate levels in the body to an unhealthy level. Studies have linked high levels of phosphate with conditions like heart disease, decreased bone density, premature aging, kidney issues and even early death ( 7 ).

How is sodium tripolyphosphate used in food?

STPP is used as a preservative for poultry, meat, and seafood. It is also added, along with other sodium polyphosphates, to processed cheeses as an emulsifier. The polyphosphates are negatively charged chains of phosphorus and oxygen that attract water molecules.

What are the side effects of sodium phosphate?

Some side effects can be serious. If you experience any of these symptoms or those listed in the IMPORTANT WARNING section, call your doctor immediately:

  • irregular heartbeat.
  • vomiting.
  • fainting.
  • seizures.
  • rash.
  • hives.
  • itching.
  • swelling of the eyes, face, lips, tongue, mouth or throat.

How do you dissolve a STPP?

Weigh out 2.5 g of sodium tripolyphosphate. In a 150-ml acid-washed beaker, dissolve the sample in 100 ml of deionized distilled water. Under a hood, acidify the solution with concentrated HNO3 to a pH of less than 2. Gently heat the solution to reduce the volume below 100 ml, making certain that it does not boil.

Is sodium nitrate the same as sodium phosphate?

Sodium nitrate is used to cure the meat and helps to prevent the growth of bacteria. It is similar to the process that has been used since before refrigeration. Phosphate helps to maintain the moisture in the meat.

Can I mix TSP and vinegar?

Mix ½ cup vinegar with ½ tsp. all-purpose liquid detergent and 2 cups very hot tap water. Combine in a spray bottle and mix well. Spray on then rinse with a sponge.

Why is sodium phosphate bad for you?

Sodium phosphate can cause serious kidney damage and possibly death. In some cases, this damage was permanent, and some people whose kidneys were damaged had to be treated with dialysis (treatment to remove waste from the blood when the kidneys are not working well).

Why do you put sodium tripolyphosphate in fish?

STTP serves as a food preservative. Sodium tripolyphosphate in food acts as an emulsifier, which increases the moisture content in food. Processors soak fish fillets in STTP, which results in a substantial increase in the sale weight of fish. Sodium Tripolyphosphate fish is heavier, fetching a higher price for processors.

What is sodium tripolyphosphate ( STPP ) used for?

Sodium Tripolyphosphate (STPP) is an inorganic compound mostly used for preserving frozen meat and seafood products. Used in trace amounts, STPP preserves the water content inside the flesh.

Can a person be allergic to sodium tripolyphosphate?

Sodium Tripolyphosphate fish can cause allergic-type reactions as studies have shown that STTP can irritate the skin and mucous membranes. So if you think you might be allergic to fish, check and see if your fish processors use STTP in the processing of your frozen fish fillets.

Which is the best phosphate treatment for shrimp?

Thus, phosphate treatment before freezing can reduce water (moisture) loss. Fresh shrimp were treated to immersions in the following individual solutions (5ᵒC, 60 min): distilled water; 5% NaCl; 5% STPP; 5% CARNAL 961; 5% NP-30; 5% BRIFISOL 450; and 5% BRIFISOL S2; and submitted to two freeze-thaw cycles.