Can you eat hairy crabs when they die

summary

Crab is one of people's favorite aquatic products, especially when it comes to hairy crabs. But can crabs eat when they die? Now I'll tell you in detail whether hairy crabs can be eaten when they die, and how to identify dead crabs.

Can you eat hairy crabs when 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: most of the river crabs grow in dirty ponds. They like to eat dead fish, shrimps and other rotten animal carcasses in the water. Therefore, they are easily infected with bacteria. Generally, there are a lot of microorganisms inside and outside the crab. When alive, river crabs can metabolize bacteria out of the body. Once dead, bacteria in the body will multiply and decompose crab meat, and some bacteria will produce toxins.

matters needing attention

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.