E315 – Erythorbic acid
AntioxidantsDescription
White to slightly yellow crystalline powder
Notes
Erythorbic acid is a synthetic compound that's chemically very similar to vitamin C (ascorbic acid). It's made in laboratories by modifying the molecular structure of ascorbic acid slightly, creating what chemists call an "isomer" - essentially a mirror image version of vitamin C. The result is a white to slightly yellowish crystalline powder that looks much like regular vitamin C powder. This additive works as an antioxidant in processed foods, which means it prevents other ingredients from reacting with oxygen in the air. When fats, oils, or certain vitamins are exposed to oxygen, they can go rancid or lose their nutritional value, so erythorbic acid acts like a protective shield. You'll commonly find it in cured meats like bacon, ham, and sausages, as well as frozen fruits and vegetables, canned foods, and some beverages. While erythorbic acid is synthetic rather than naturally extracted, it's considered safe for consumption and is suitable for vegetarian and vegan diets since it's made through chemical processes rather than from animal products. Unlike regular vitamin C, however, erythorbic acid doesn't provide the same nutritional benefits to your body - it's specifically designed to protect food, not to function as a vitamin in your system.