MONOSODIUM GLUTAMATE (MSG) SODIUM GLUTAMATE

·         CAS Number 6106-04-3

·         Linear Formula NaOOCCH₂CH₂CH(NH₂)COOH · H₂O

·         Molecular Weight 187.13

·          Beilstein Registry Number 4164348

·          MDL number MFCD00150138

·          PubChem Substance ID 329750495

Monosodium glutamate (MSG, also known as sodium glutamate) is the sodium salt of glutamic acid, one of the most abundant naturally occurring non-essential amino acids.^{[Manuf. 1]} Monosodium glutamate is found naturally in tomatoes, cheese and other foods.

Detailed description

MSG is used in the food industry as a flavor enhancer with an umami taste that intensifies the meaty, savory flavor of food, as naturally occurring glutamate does in foods such as stews and meat soups.^[2][3] It was first prepared in 1908 by Japanese biochemist Kikunae Ikeda, who was trying to isolate and duplicate the savory taste of kombu, an edible seaweed used as a base for many Japanese soups. MSG as a flavor enhancer balances, blends, and rounds the perception of other tastes.^[4][5]

The U.S. Food and Drug Administration has given MSG its generally recognized as safe (GRAS) designation.^{[Gov. 2]} A popular belief is that large doses of MSG can cause headaches and other feelings of discomfort, known as "Chinese restaurant syndrome," but double-blind tests fail to find evidence of such a reaction.^{[Gov. 2][6]} The European Union classifies it as a food additive permitted in certain foods and subject to quantitative limits. MSG has the HS code 29224220 and the E number E621.

Use

Pure MSG is reported not to have a pleasant taste until it is combined with a savory aroma.^{[Manuf. 2]} The basic sensory function of MSG is attributed to its ability to enhance savory taste-active compounds when added in the proper concentration.^[4] The optimum concentration varies by food; in clear soup, the pleasure score rapidly falls with the addition of more than one gram of MSG per 100 mL.^[7]

The sodium content (in mass percent) of MSG, 12%, is about one-third of that in sodium chloride (39%), due to the greater mass of the glutamate counterion.^{[Manuf. 3]} Although other salts of glutamate have been used in low-salt soups, they are less palatable than MSG.

PRICE

$522153.66/KG OR $237342.57/IB

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