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Although MSG widely exists in the daily food, glutamic acid and other amino acid to enhance the effect of food freshness, in the early 20th century, was scientifically recognize. In 1907, researchers at the university of Tokyo imperial ikeda found a chrysanthemum seedlings, kelp, seaweed soup left after evaporation of brown crystal, namely the glutamic acid. These crystals, there's a kind of hard to describe but good taste the flavor. This kind of taste, ikeda traces can be found in many foods, especially in the seaweed. Professor ikeda called the taste \"taste\". Then, he for mass production of glutamic acid crystal method applied for a patent. Professor ikeda called monosodium glutamate \"ajinomoto\". This throughout the Japanese ajinomoto, quickly spread to China, changing his name to \"monosodium glutamate\". Before long, MSG is popular all over the world, become the indispensable condiment.

Monosodium glutamate, scientific name monosodium glutamate. Its development roughly three stages:

First stage: 1866 germans h. Ritthasen Dr (reed howson) isolated from gluten to amino acids, glutamic acid, they claim, according to the raw material as the bran acid or glutamate (because of gluten has been extracted from the wheat). In 1908 at the university of Tokyo in Japan ikeda chrysanthemum seedling test, isolated from kelp to L - glutamate crystals, the crystals and L - glutamic acid from protein hydrolysis is the same material, and freshness.

The second stage: gluten or big soybean meal as raw material by using acid hydrolysis method of monosodium glutamate production, in 1965 was produced by using this method. This method is used up big, the cost is high, the labor intensity is big, high requirements for equipment, acid equipment.

The third stage: with the progress of science and the development of biotechnology, revolutionary changes have taken place in monosodium glutamate production. Since 1965 with food gourmet powder factory in China are used as raw material, corn starch, rice, wheat starch, sweet potato starch) is obtained by microbial fermentation, extraction, refining and meet the national standards of monosodium glutamate, for increased on the market a kind of safe and nutritious seasoning, after using it to make dishes more delicious.

nutrients

Nutrient content (per 100 grams), heat (calories) 268.00 carbohydrate fat (26.50 g) (g) protein cellulose (g) (g), 40.10 0.20 0.00 0.00 vitamin C vitamin A (MCG) (0.00 mg) of vitamin E (mg) 0.00 carotene (MCG) 0.00 thiamine (mg) 0.08 riboflavin (mg) 0.00 nicotinic acid (0.30 mg) of cholesterol (mg), magnesium (mg) 0.00 0.00 calcium zinc (mg), iron (mg) 100.00 100.00 (0.31 mg) copper (mg) 0.12 mn (mg) 0.67 k (mg) 4.00 p (4.00 mg) of sodium (mg), 8160.00 (because for sodium glutamate monosodium glutamate and sodium) highest selenium (MCG) 0.98

MSG is suitable for neurasthenia, cerebral dysgenesis, schizophrenia patients to eat; Suitable for hepatic coma recovery, severe hepatic insufficiency to eat; Suitable for gastric ulcer and gastric juice lack of person eating; For lack of intelligence and heritage of memory disorder after cerebral hemorrhage; Suitable for petit mal epilepsy and psychomotor hair author edible; Suitable for poor appetite, loss of appetite to eat; Is suitable in the dish or soup to add when to eat.

According to the research; MSG can improve people's appetite, and improve the ability of the absorption of other kinds of food, there was a tonic effect to human body. Because MSG contains a large number of glutamic acid, is an amino acid needed for human body, 96% can be absorbed by human body, the formation of the protein in the body's tissues. It can also combine with blood ammonia, harmless to the body of glutamine, remove tissue metabolism in the process of ammonia produced by toxic effects. And to participate in the brain protein metabolism and sugar metabolism, promote oxidation process, the normal activities of the central nervous system plays a good role. Because of this, there are reports to prevent hepatic coma, take MSG each 3 grams, 1, 3 times; Prevention and cure of epileptic petit mal, 2 grams a day, pediatric age of each take 1 g daily, 1, 3 points served; Brain development is not complete, every years old take the l ~ 1.5 g per day, 1, 3 points. MSG is a kind of widely used condiments, it can be decomposed into glutamic acid after taken in the human body, tyrosine, beneficial to human body health.

MSG to eat unlimited and safe

In 1959, the FDA put MSG in food classification in the safest \"generally considered harmless\" (GRAS) category.

In 1987, the United Nations food and agriculture organization (fao) and the world health organization put MSG in \"the security\" category;

In 1991, the European commission food science committee confirmed for \"daily intake can be classified as\" monosodium glutamate \"quantitative\" (the safest eu system category);

In 1999, our country also completed the MSG long-term toxicology test, test and internationally consistent conclusion, namely consuming it is safe;

On October 7, 2007, CCTV news channel - the weekly quality report, nutrition experts xiao-song wu said: monosodium glutamate main ingredients are sodium glutamate, clarify \"monosodium glutamate\" absolutely no damage to human body health.