The solubility of chicken essence to sodium glutamate is the highest at 70℃~90℃. When the temperature is above 120℃, the sodium glutamate in chicken essence will become coking sodium glutamate, which not only loses its flavor, but also has certain toxicity. If children take it for a long time, it will easily lead to dull taste.
Eating too much monosodium glutamate will lead to excessive sodium intake, leading to edema, elevated blood pressure and other diseases. Once the intake of sodium salt in the body is too high, it will lead to the increase of osmotic pressure and blood volume in the body and increase the burden on the heart. Will hinder the body's absorption of minerals such as calcium and magnesium. In particular, glutamic acid can not be absorbed and utilized by human body after combining with zinc in blood, which will indirectly lead to zinc deficiency in human body.
Sodium pyroglutamate will be produced when monosodium glutamate is heated at high temperature for a long time. Some studies believe that it may cause cancer and is not beneficial to the human body. Excessive use of monosodium glutamate is also considered to lead to: retinal damage, leading to decreased vision; Inhibit nerve function, thus affecting children's development.
Extended data
Monosodium glutamate is just a flavor enhancer in our dishes. When we feel loss of appetite, we can eat it in moderation. According to the World Health Organization, the intake of monosodium glutamate is 1.20mg/kg body weight per adult per day, so it is better for a person of 50 kg not to exceed 6 g.
Marinade and cold salad do not contain monosodium glutamate. Because monosodium glutamate once put in, it is easy to wrap the surface of food and prevent other seasonings from infiltrating into food, so it tastes only single and insipid.
After cooking, chicken essence and monosodium glutamate should be put in. At this time, the temperature is about 90℃, and the sodium glutamate in chicken essence can be fully dissolved and its unique flavor can be highlighted. Chicken essence has strong hygroscopicity and is more susceptible to microbial contamination than monosodium glutamate. It should be sealed in a bottle to avoid moisture. It should not be stored for a long time after opening the cover, and it should be tightly covered after each use.
References:
Cctv? Harm of monosodium glutamate 5 kinds of home-cooked dishes are easily poisoned by monosodium glutamate
References:
Cctv? It is best to use less chicken essence.