E355 - Adipic acid

Origin

Adipic acid is a dicarboxylic acid. Industrially, it's primarily produced from cyclohexane, which is derived from petroleum. The process involves oxidation reactions to convert cyclohexane into adipic acid. It can also be produced from renewable resources, although this is less common.

Usage

Adipic acid is used as a food additive primarily as a flavoring agent and acidulant. It imparts a tart or acidic taste to foods and beverages. It is commonly found in fruit juices, gelatins, baking powder, and processed foods. It is also used in the production of some cheeses to aid in coagulation. Beyond food, adipic acid is used in the manufacture of nylon, polyurethane, and various other industrial products. It is also used as a buffering agent and pH regulator.

Side Effects

Adipic acid is generally considered safe for consumption at levels typically used in food. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has established an Acceptable Daily Intake (ADI) of "not specified", meaning that, based on available data, the total daily intake of the substance arising from its use as a food additive does not represent a hazard to health. High concentrations may cause irritation to the skin or eyes. There are no significant concerns regarding carcinogenicity, genotoxicity, or reproductive toxicity at normal levels of exposure. Some individuals might experience mild gastrointestinal discomfort if very large quantities are consumed, but this is rare.