monosodium glutamate is an industrially produced umami seasoning that is very popular in modern times. It is also known as Ajinomoto. It was discovered by Ikeda Kikuchi, a researcher at the Imperial University of Tokyo in Japan at the beginning of the last century. The main ingredient of monosodium glutamate is sodium glutamate, which is the most commonly used seasoning to increase the umami of food. It is most commonly used in Chinese food and is also popular in other parts of Southeast Asia.

　　The earliest MSG refers to food Sodium glutamate crystals purified by fermentation. Since 1965, glutamic acid has been produced from sugar or starch raw materials in China, and then glutamic acid is extracted by isoelectric point crystallization precipitation, ion exchange or zinc salt purification, and then decolorized, deironed, evaporated, and crystallized. Sodium glutamate crystals are made by other processes.

　　Everyone has heard that MSG is poisonous. Eating MSG can cause dizziness, hair loss, and uncomfortable throat. In fact, MSG and sugar are all flavors of food origin. Most of the misconceptions about MSG are caused by products. Attention shift (transferring highly profitable monosodium glutamate to chicken and chicken powder and soy sauce and other products with higher profit margins), a kind of recognition like erroneous rumors and "the emperor''s new clothes".

　　 Then, some people said, how would you eat too much MSG, then you can tell you: if you eat too much salt and sugar, the problem is worse, for example, some cancers, stomach diseases, high blood pressure will take salt Excessive intake has a certain relationship, and the biggest problem with too much sugar is the easy intake of too many calories, and this food can almost be considered to contain no other vitamins and minerals, so the nutritional value is extremely low.