E281 – Sodium Propionate
PreservativeDescription
Preservative; white crystalline powder or granules with a slightly pungent odor
Notes
Sodium propionate is a white, crystalline powder that's created by combining propionic acid (a naturally occurring fatty acid found in some cheeses and produced by certain bacteria) with sodium. This additive can be made synthetically in laboratories, but it's chemically identical to compounds that occur naturally in Swiss cheese and other fermented foods. This preservative works as a powerful mold fighter, preventing the growth of mold and some bacteria that can spoil food. You'll most commonly find sodium propionate in baked goods like bread, rolls, and pastries, where it helps extend shelf life by keeping products fresh and mold-free for longer periods. Sodium propionate is considered safe by food safety authorities worldwide and is suitable for vegetarians and vegans. It doesn't present any major allergen concerns for most people, though those on very low-sodium diets might want to be aware of its sodium content. The additive is accepted under most religious dietary laws since it's not derived from animal sources.