Can crabs be eaten after they die

Update Date: 2024-02-15 Source: Network

summary

Crab is one of people's favorite aquatic products, especially when it comes to hairy crabs. But can crabs eat when they die? The following small make-up for you to introduce hairy crab dead can eat, how to identify dead crab.

Can crabs be eaten after they die

First: Crab is a kind of scavenger with strong immunity. There are many bacteria and viruses in the food, but they are suppressed by the crab's immunity. Once the crab is dead, even not dead, but dying soon, bacteria and viruses will multiply in large numbers and breed some biological toxins. So as long as you see half dead crab, no spirit, it's best not to eat.

Second: after the crab is captured, the lactic acid in the body often increases because it wants to break free, which will lead to the rapid propagation of bacteria in the body of the crab after death and spread to the crab meat. Bacteria can decompose amino acids in the body of crabs, and then produce a harmful substance "histamine", causing allergic food poisoning; another substance that may be produced is "histamine like", which can cause vomiting, abdominal pain and diarrhea. Therefore, attention should be paid to the selection.

Third: in fact, the poison hidden in 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 died, histidine decomposed more rapidly. The longer the crab died, the more histamine accumulated in the body. When histamine accumulated to a certain amount, it would cause poisoning.

matters needing attention

Among all the toxins, there is also a very important part ammonia. How can river crabs carry ammonia? This needs to start with its rich protein. River crab contains a lot of protein. When it dies, the protein in the body will break down ammonia. After the dead crab is eaten into the human body, excessive ammonia must be discharged through the human body, which will cause harm to health.