Glutamic acid is an acidic amino acid. Molecule containing two carboxyl groups, the chemical name for the α-amino-glutaric acid. Glutamate is Rizzo Johnson discovered in 1856, is a colorless crystal, flavor, slightly soluble in water, soluble in hydrochloric acid solution, the isoelectric point of 3.22. There are a lot in the cereal protein content was also more animal brain. Glutamic acid has an important role in the process of in vivo protein metabolism, involved in many important chemical reactions in animals, plants and microorganisms. MSG