Monosodium glutamate (MSG), also known as MSG, is a sodium salt of glutamic acid. It is widely used as a flavor enhancer in the food industry to improve the flavor of foods.

Yeast extract is the general term used to refer to various forms of yeast that have been processed by removing the cell contents.

Sodium glutamate is the sodium salt of glutamic acid, a non-essential amino acid. It is commonly used as a flavor enhancer in the food industry due to its ability to improve and intensify the flavor of foods. It is often associated with the umami taste, considered the fifth basic taste after sweet, salty, sour, and bitter.

Yeast extract is a product derived from yeast, single-celled microorganisms belonging to the fungus kingdom. This extract is used in various applications, primarily in the food industry for its flavoring and nutritional properties.