Comparing E331 - Sodium citrates vs E452VI - Sodium tripolyphosphate
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Popular questions
What is e331 in food?
E331 is sodium citrates—the mono-, di-, and trisodium salts of citric acid—used mainly as acidity regulators/buffers, sequestrants, and emulsifying salts in foods like soft drinks and processed cheese.
How are sodium citrates used in molecular gastronomy?
They’re used to adjust and buffer pH, chelate calcium, and act as an emulsifying salt—commonly to make ultra-smooth, meltable cheese sauces and to tune acidity/calcium levels for techniques like spherification and stabilizing foams.
What are sodium citrates degradation byproducts?
Under normal food use they’re stable; with strong heating/combustion they decompose to carbon oxides (CO2/CO) and sodium oxides (and related inorganic residues).
Why does sodium citrates burn?
It isn’t flammable; any “burning” sensation typically comes from irritation of skin, eyes, or mouth at high concentrations due to its mildly alkaline, saline nature, and on heating it decomposes rather than sustaining a flame.
Is sodium tripolyphosphate bad for you?
Not at the low levels used in foods; regulators consider it acceptable within set limits, though very high intakes of phosphate additives may be a concern—especially for people with kidney disease or those advised to limit phosphorus.
What is sodium tripolyphosphate used for?
It’s added as a sequestrant and stabilizer to improve water retention, texture, and juiciness—commonly in seafood, meats, and poultry—and also helps emulsify and reduce drip loss.
How to remove sodium tripolyphosphate from fish?
You can reduce surface residues by rinsing and briefly soaking the fish in cold water (e.g., 10–20 minutes with water changes), but once absorbed it can’t be fully removed; choosing phosphate‑free products is the only way to avoid it entirely.
How to remove sodium tripolyphosphate from shrimp?
Rinse and soak the shrimp in cold water for 10–20 minutes (changing the water) to wash off some surface STPP, then drain and pat dry, but be aware that absorbed phosphate cannot be completely removed.
Is sodium tripolyphosphate safe?
Yes—when used within legal limits set by authorities like EFSA and FDA; EFSA has a group ADI for phosphates of 40 mg/kg body weight per day (as phosphorus), and people with kidney disease should limit intake of phosphate additives.