Various phosphate in food

Foreword

Phosphate is a widely used food additive and plays an important role in improving food quality.At present, food phosphates mainly include sodium salt, potassium salt, calcium salt, iron salt, zinc salt and so on.Phosphate is mainly used as water retainer, bulking agent, acidity regulator, stabilizer, coagulant and potassium ferrocyanide in food.Current national standard GB 2760-2014 "national food safety standard-Standards for the use of food additives"clearly points out the types of phosphate additives that can be used in food and the maximum use requirements.A total of 19 kinds of phosphate are allowed to use.

Among them,trisodium phosphate anhydrous,sodium hexametaphosphate,sodium pyrophosphate,sodium Tripolyphosphate,sodium trimetaphosphate and so on can be added into the specified food types in accordance with the specified amount.Calcium hydrogen phosphate and sodium dihydrogen phosphate are only used in infant formula food and infant supplementary food,and The maximum dosage of single or mixed use is 1.0g/kg with PO43-.