The primary raw material for MSG production is glutamic acid, an amino acid that can be derived from various sources. Traditionally, glutamic acid was extracted from protein-rich foods like meat and fish. However, modern production methods favor the fermentation process using carbohydrates as a substrate. Common sources include starch, sugar, and molasses, which provide the necessary sugars for fermentation. The carbohydrate sources, primarily obtained from corn or sugarcane, are first hydrolyzed to convert starches into fermentable sugars.