What is Food Additive E222 ?
E222, also known as sodium bisulfite, is a food additive belonging to the category of chemical preservatives. It is a sodium salt of sulfurous acid and appears as an unstable white powder that reacts with oxygen to form sulfate. Under acidic conditions, it forms sulfurous acid, which possesses preservative, oxidizing, and bleaching properties, but also reduces the vitamin content in foods. E222 has the chemical formula NaHSO3 and a faint sulfurous odor.
Its primary use is as a preservative and antioxidant, ensuring the longevity and safety of various food products.
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What is the Recommended Daily Dose ?
The use of the food additive E222 is regulated by food safety authorities worldwide. In the European Union, the European Food Safety Authority (EFSA) has established acceptable daily intake levels for sodium bisulfite.
- Maximum inclusion dose: 10-2000 mg/kg or mg/l
- Permitted daily intake for human consumption: up to 0.7 mg/kg body weight, a dose that can be easily exceeded through the cumulative consumption of products containing sulfite-derived preservatives.
In Which Products Can You Find Food Additive E222 ? InfoCons Consumer Protection Informs You !
In the food industry, E222 is primarily used for its preservative properties. It inhibits the growth of bacteria, molds, and yeasts, thus extending the shelf life of food products.
- Preservation of Fruits and Vegetables: Sodium bisulfite is often used to help preserve fruits and vegetables. When exposed to air, many fruits and vegetables undergo oxidation, leading to brown discoloration. E222 helps maintain the color and freshness of these products.
- Wine and Beer Production: E222 acts as an antioxidant and stabilizer in the production of wines and beers. It prevents oxidation and maintains the taste and color of the beverage. Additionally, it serves as a disinfectant for winemaking equipment and barrels.
- Baked Goods and Confectionery: The compound is also used in baked goods to prevent spoilage and maintain texture. It helps preserve the flavor and appearance of the products.
In Which Products is the E220 Additive Found ? InfoCons Consumer Protection informs you ! InfoCons Consumer Protection Informs You !
Contraindications and Risks
Although E222 is generally recognized as safe when used properly, some individuals may be sensitive to sulfites, experiencing allergic reactions, respiratory issues, or digestive problems. Therefore, it is mandatory for food products containing sulfites to carry appropriate labeling.
Conclusion
E222, sodium bisulfite, plays a vital role in food preservation, water treatment, textile manufacturing, and pharmaceuticals. Its effectiveness as a preservative and antioxidant makes it a valuable compound in ensuring the quality and longevity of various products. However, it is essential to use this chemical responsibly, adhering to regulatory guidelines to ensure consumer safety and environmental protection.
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Author – Cosmina Nițu
Master in Nutrition – Infant and new born nutrition
Sources:
https://www.efsa.europa.eu/en/ – European Food Safety Authority (EFSA)
InfoCons – European Organization for Consumers Protection and Promotion of Programs and Strategies , a full member of the World Organization Consumers International, founding member of the Federation of Consumer Associations, and member of ANEC.