E132 – Indi; Carmine

Description

Indigotine; a synthetic organic colorant derived from coal tar, disodium salt of 3,3'-dioxo-2,2'-biindolinylidene-5,5'-disulfonic acid

Risks

Notes

Indigotine, also known as indigo carmine, is a synthetic blue dye originally derived from coal tar, though modern production typically uses petroleum-based chemicals. It's created through a series of chemical reactions that transform these raw materials into a brilliant blue powder. The process involves treating specific organic compounds with sulfuric acid and other chemicals to create the final food-grade colorant. This additive serves as a blue food colouring agent, giving products their distinctive blue or blue-green appearance. You'll commonly find it in blue-coloured candies, ice creams, beverages, cake decorations, and some processed foods where manufacturers want to achieve that eye-catching blue hue. It's particularly popular in novelty foods and children's treats. Since E132 is synthetically produced, it's suitable for vegetarian and vegan diets, and it doesn't conflict with religious dietary laws. However, some people may experience allergic reactions or sensitivities to synthetic food dyes, and there has been ongoing discussion about potential links between artificial colours and hyperactivity in some children. The additive is approved for use in many countries, though some nations have stricter regulations or require warning labels on products containing it.