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According to the living habits of crabs, it is not recommended to eat dead crabs. Crabs love to eat putrid food and accumulate pathogenic bacteria and toxic substances in their bodies. Dead crabs will quickly grow a large number of bacteria in their bodies, so they should not be eaten, especially when the weather is hot.
In terms of taste, crabs lose their original flavor after they die. There is also a histidine substance in the crab body. Histidine is easily decomposed and can produce histamine and histamine-like substances under the action of decarboxylase. After the crab dies, the midgut gland will fall apart quickly, and the histidine in it will , digestive enzymes will break down the crab meat. Therefore, the taste of dead crabs is weird and the taste is greatly reduced.
The crab itself is non-toxic, but after the crab dies and the crab's shell is damaged, the protein in the crab's body will breed bacteria, and the infectious bacteria in its body will multiply in large numbers, and the bacteria may produce toxins. Dead crabs may be poisonous.
Crabs can easily carry heavy metals in their bodies. After a crab dies, the midgut glands will quickly fall apart. The digestive enzymes inside will scatter and break down the crab meat. The intestinal glands are relatively easy to accumulate heavy metals. After the crabs die, the heavy metals will It will also come out and cause pollution.
If the crab has not been dead for a long time and is refrigerated, it can still be eaten. Remember, it is refrigerated and not frozen. Furthermore, sea crabs are better than river crabs because the living environment of river crabs is worse and there are more bacteria. .
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