Citric acid is a weak organic acid.

Sodium citrate is the sodium salt of citric acid, which is weakly alkaline.

2. Different uses

Citric acid is mainly used as sour agent, which has a very attractive and less irritating sour taste, and is widely used in sour and sweet foods such as drinks, candied fruit and candy.

The sour taste of sodium citrate is not as obvious as that of citric acid. Its sour taste is mainly produced by hydrolysis into citric acid, so it is only used for general seasoning, mainly used as preservative, preservative, buffer and chelating agent.

3, the main role

Citric acid is mainly used to adjust the acidity of food.

Sodium citrate is mainly used as food additive, which has the largest demand. It can also be used as flavoring agent, expansion agent, stabilizer, preservative, buffer and emulsifier.

Extended data:

Additives that must not be used.

In the process of green food production and processing, according to the product itself or production needs, food additives can be used for grade A and AA products. AA-grade green food is only allowed to use natural food additives, and synthetic food additives are not allowed.

Synthetic food additives can be used in Grade A green food, but the following products are not allowed: potassium ferrocyanide, 4-hexylresorcinol, sulfur, potassium aluminum sulfate, ammonium aluminum sulfate, erythrosine, erythrosine aluminum ingot, Xinhong aluminum ingot, titanium dioxide and caramel color (ammonium sulfite method). Ammonia production), sodium sulfate (potassium), sodium nitrite (potassium).

Baidu encyclopedia-citric acid

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