Sodium Potassium Tartrate (E337)
Type of additive (Glossary) | Acidity Regulators, Emulsifiers, Sequestrants, Stabilizers |
E Number | E337 |
Chemical Formula | KNaC4H4O6·4H2O |
Also Known As | Rochelle salt |
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Purpose and Function
Sodium Potassium Tartrate (E337) is used in the food industry as an acidity regulator, stabilizer, and sequestrant. It helps control the pH of food products, improve texture, and prevent crystallization in certain preparations. Common applications include:
- Baking: Used as a component in baking powder to aid in the leavening process.
- Confectionery: Helps prevent sugar crystallization in candy-making and maintains a smooth texture.
- Dairy products: Can be used to stabilize and improve the texture of certain dairy-based products.
- Electroplating and laboratory use: While not a food application, sodium potassium tartrate is also known for its use in electroplating and as a reagent in laboratories.
Sodium Potassium Tartrate (E337) is derived from tartaric acid and is valued for its functional properties in various food processing applications.
Potential Risks and Side Effects
Sodium Potassium Tartrate (E337) is generally considered safe for consumption when used within regulated limits, with minimal risks. Some considerations include:
- Sodium and potassium content: Individuals on restricted sodium or potassium diets should be mindful of the intake from foods containing sodium potassium tartrate.
- Digestive effects: In large amounts, it may cause mild digestive discomfort, though such effects are rare at typical consumption levels.
- Regulatory approval: Sodium Potassium Tartrate (E337) is approved for use in many countries, including the European Union and the United States, where it is considered safe for use as a food additive.
Overall, it is regarded as a safe and effective food additive used for its stabilizing and acidity-regulating properties.