Trisodium phosphate (TSP) or sodium phosphate tribasic, a common food grade ingredient used in cereal and other processed foods. The European food additive number for it is E339(iii). TSP can be used as an acidity regulator to decrease acidity in cereal, a moisture retainer to improve the tenderness (or juiciness) in meat and seafoods, and a supplement to enhance phosphorus nutrient in food.

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