E313 – Thiodipropionic acid
AntioxidantsDescription
Technical Description: Antioxidant; prevents rancidity and discoloration in fats and oils
Notes
## E313 - Ethyl Gallate **Ethyl gallate** is a **synthetic antioxidant** created by combining **gallic acid** (which can be extracted from plants like oak galls or tea leaves) with **ethanol** through a chemical process called **esterification**. This reaction creates an **ester compound** that's more effective and stable than gallic acid alone. The manufacturing process involves controlled chemical synthesis in specialized facilities to ensure purity and consistency. This antioxidant works by preventing **rancidity** and **discoloration** in foods, particularly those containing **fats and oils**. You'll find E313 in products like margarine, vegetable oils, snack foods, nuts, and some processed meats where it helps extend shelf life by preventing the breakdown of fats that leads to off-flavors and spoilage. It's especially useful in products that might be stored for longer periods or exposed to air and light. **E313** is a **synthetic additive**, though it's derived from naturally occurring gallic acid. It's suitable for **vegetarian** and **vegan** diets and doesn't present specific concerns for most religious dietary laws. Food safety authorities have established acceptable daily intake levels, and it's generally recognized as safe when used within approved limits. Some people prefer to avoid synthetic antioxidants in favor of natural alternatives like vitamin E, but E313 remains an approved and effective preservative option.