E390 - Thiodipropionate de distéaryle

Origin

Distearyl thiodipropionate (DSTDP) is a synthetic antioxidant derived from thiodipropionic acid and stearyl alcohol. It is not naturally occurring and is produced through chemical synthesis.

Usage

DSTDP is primarily used as an antioxidant in plastics, rubbers, and lubricants. In food packaging, it helps to prevent the degradation of polymers, thereby maintaining the integrity of the packaging material. This indirectly protects the food from oxidation and other forms of spoilage. It is generally not added directly to food. Its use is limited to materials that come into contact with food. The European Food Safety Authority (EFSA) has evaluated DSTDP for use in food contact materials. The acceptable daily intake (ADI) is not explicitly defined for DSTDP, but its use is regulated based on migration limits from packaging into food.

Side Effects

DSTDP is considered to have low toxicity. Studies have shown that it is poorly absorbed from the gastrointestinal tract. However, as with any chemical substance, there is a potential for allergic reactions in sensitive individuals. The primary concern is related to the potential migration of DSTDP from food packaging into food. Regulatory bodies set limits on the amount of DSTDP that can migrate into food to ensure consumer safety. No significant adverse effects have been reported at levels typically encountered in food contact applications.

Regulatory Status

DSTDP is approved for use in food contact materials in many countries, including those within the European Union and the United States. Regulations specify the maximum permitted levels of migration from packaging into food. These regulations are designed to ensure that exposure levels remain within safe limits. The FDA regulates DSTDP under specific sections of the Code of Federal Regulations (CFR) pertaining to food additives and indirect food additives. EFSA provides scientific opinions on the safety of DSTDP for use in food contact materials.