E576 - Sodium gluconate

Origin

Sodium gluconate is the sodium salt of gluconic acid, produced by the fermentation of glucose. It's a white to tan, granular to fine, crystalline powder, very soluble in water. Industrially, it is produced by the fermentation of glucose using microorganisms like *Aspergillus niger* or by electrochemical oxidation.

Usage

Sodium gluconate is widely used in various industries due to its chelating, sequestering, and cleaning properties. In the food industry, it functions as a sequestrant, stabilizer, and texturizer. It can prevent the formation of milk stone in dairy processing, improve the texture of processed fruits and vegetables, and enhance the effectiveness of cleaning agents used in food processing equipment. It is also used in cleaning products, metal finishing, and the construction industry as a concrete admixture to retard setting and improve workability. Its chelating properties make it useful in removing mineral deposits.

Side Effects

Sodium gluconate is generally recognized as safe (GRAS) by regulatory bodies like the FDA. Studies have shown low toxicity. As a food additive, it's consumed in relatively small quantities. No significant adverse effects have been reported at typical usage levels. However, as with any substance, excessive consumption could potentially lead to gastrointestinal discomfort in sensitive individuals. There is no established ADI (Acceptable Daily Intake) because it is considered of low concern.

Regulatory Status

Sodium gluconate is approved for use as a food additive in many countries, including the United States, the European Union, and others. In the EU, it is designated as E576. The FDA considers it GRAS (Generally Recognized As Safe) when used in accordance with good manufacturing practices. It is also approved for use in organic food production in some regions.