How long does it take for a river crab to die, it can t be eaten

Can you eat Panjin River crab when it's dead?

1. After the river crab dies, it will produce a chemical called "histidine" in its body, which will decompose to produce the toxic substance "histamine". The longer the crab dies, the more poisons will be in the body, and the toxins will not be easily destroyed even if they are cooked. And this toxin can cause an allergic reaction in people, which can lead to poisoning.

2. Sometimes, the river crab is not dead, and the bacteria and viruses in its body begin to multiply when it is dying (the antibodies in the crab's body will be inhibited when it is alive), and some harmful substances will already be bred at this time.

Crabs cannot be eaten for a few hours after death, depending on the state of storage in which the crab dies and when it dies. If you die at room temperature, it is generally not recommended to consume it for more than 2 hours; If you die in a frozen state and are not recommended to eat it for more than 3 months.

Crabs are rich in protein, vitamin D, calcium, phosphorus, potassium, sodium, magnesium, selenium and other nutrients, which are beneficial to health. However, crabs mainly feed on animal carcasses and decaying food, and once a crab dies, bacteria in its body will multiply in large numbers, and then produce toxins that are harmful to the human body.

In addition, a large amount of histamine will be produced after the crab dies, histamine has strong toxicity, and it will cause gastrointestinal symptoms such as nausea, vomiting, diarrhea and so on after human consumption, and the longer the crab dies, the more histamine accumulates, and the more serious the poisoning reaction after human consumption.

Therefore, it is best not to eat crabs that have been dead for more than 2 hours at room temperature. However, under freezing conditions, the growth, reproduction and decomposition of bacteria will be inhibited, and consumption within 3 months after death will generally not affect the human body.

It should be reminded that it is better to buy fresh crabs and cook them thoroughly in time before eating them to avoid causing poisoning reactions. In addition, people who are allergic to crabs, hyperuricemia or gout, pregnant women and other people should eat less crabs or avoid them.

The river crab died for a day and could not be eaten again. In fact, the poison hidden by the Dead River crab is far from that. Crabs also contain more histidine, which is easy to decompose and can produce histamine and histamine-like substances under the action of decarboxylase.

Especially when the crab dies, the histidine decomposes more rapidly, the longer the crab dies, the more histamine accumulates in the body, and when histamine accumulates to a certain amount, eating it will cause poisoning.

In addition, the river crab contains a lot of protein, and when it dies, the protein in the body breaks down ammonia. After the dead crab is ingested into the human body, the excessive amount of ammonia must be excreted through the body, which can cause health harm in this process.

No, there are too many toxins, beware of food poisoning.

No, dead river crabs are not edible.

Don't eat it, it's not good for your health, it's recommended to sell it again.

Can not be eaten, there are toxins.

Except for freshly dead river crabs, dead river crabs that have been left for a long time should not be eaten, because after the death of river crabs, they will produce a toxic substance called "histamine", and continued consumption may cause allergies or poisoning. When choosing river crabs, you should try to choose fresh ones to avoid the situation of accompanying Tan.

River crabs can not be eaten except when they have just died, because after the death of river crabs, they will produce a toxic substance called "histamine" in the body, and the longer the river crab dies, the more this substance will be, and continued consumption may lead to human allergies or poisoning, which is why people usually steam live river crabs.

When buying river crabs, you also need to pay attention to the bacteria and viruses in the body of the dying river crabs will also begin to multiply, so Zhizheng should try to choose fresh ones when selecting river crabs, so as to make the crab mouth reeds more fresh and tender, and also avoid allergies or poisoning.

The difference between a live river crab and a dying or dying river crab is in terms of luster, shell hardness, vitality, etc. Generally speaking, the shell of fresh river crabs is relatively shiny, the body is full, the leg hair is smooth, and there is a subtle foaming sound. The shell of the dead crab will turn yellow, and the crab legs will be soft and will not be straightened.