Is monoglutamate de sodium e621 vegan?

Monoglutamate de sodium e621 is the French name for monosodium glutamate, an E-number additive commonly known in English as MSG. It is the sodium salt of glutamic acid and functions as a savory, umami flavor enhancer.

Commercial production of this additive relies on the bacterial fermentation of plant-based carbohydrates. Manufacturers ferment sugars derived from crops such as sugar cane, sugar beets, cassava, or corn using non-pathogenic bacteria. The resulting glutamic acid is subsequently filtered and neutralized with mineral-derived sodium hydroxide or sodium carbonate to form the final crystalline salt. It frequently appears on ingredient labels for processed savory foods, including potato chips, instant ramen seasoning packets, canned soups, bouillon cubes, and packaged sauces.

This ingredient is classified as vegan because it is produced exclusively through plant-based materials, microbial action, and mineral compounds. Modern industrial manufacturing does not utilize animal tissues, animal byproducts, or animal-derived processing aids at any stage of the fermentation or crystallization process. Because monoglutamate de sodium E621 contains no animal sources, it is entirely suitable for a vegan diet.