sulphur dioxide (E220) | Chocolate bars with sulphur dioxide (E220) | ID: 131 | ||
Sulphur dioxide is produced by burning sulphur. It is a colorless gas, used as preservative. It prevents enzymatic and bacterial spoilage of products. It also acts as an oxidizing agent, with bleaching effects. Finally, it stabilizes vitamin C in products and prevents discoloration of white wine. |