Is a three eyed crab a sea crab and can you eat it when you die?

Three-eyed crabs are sea crabs.

Dead crabs can't be eaten.

Three-eyed crab: The scientific name of Chinese is Red Star Barracuda Crab, also known as Three-eyed Crab, Barracuda Crab, Gun Crab, Sea Worm, Water Crab, etc. The living environment is seawater, mostly found on the muddy and sandy seabed at a depth of 10-30 meters. It is found in Japan and Hawaii.

Philippines, Australia, New Zealand.

The Malay Archipelago, the Indian Ocean and South Africa.

Coastal throughout the Indo-Pacific warm water area, the island of Taiwan.

and Guangxi, Guangdong, Fujian and other places in Chinese mainland.

Dead crabs avoid eating: because crabs like to eat decaying substances such as animal carcasses, so their gastrointestinal tract often carries pathogenic bacteria and toxic substances, once dead, these bacteria multiply in large quantities, in addition, crabs also contain more histidine.

Histidine is easily broken down and histamine can be produced under the action of decarboxylase.

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

The scientific name is Red Star Barracuda Crab, a kind of sea crab, and it is easy to breed bacteria in dead crabs to eat, and generally cannot be eaten, <>

1 Someone eats.

The three-eyed crab is actually the red star crab that is often said in life, it is a common seafood in life, sweet and cold, which is rich in protein, vitamins, cellulose, fat and a variety of mineral compounds, and the nutritional value and edible value are relatively high, and it is deeply loved and welcomed by people.

The second is that the taste of the three-eyed crab is delicious, and there are people who eat it in life, and the reason why no one eats it may be that it is the spoiled three-eyed crab, and the spoiled three-eyed crab is easy to pose a threat to human health after eating.

2 According to the actual situation.

Under normal circumstances, if the three-eyed crab bought home is frozen to death in the freezer, then it is not recommended to eat it again, which is easy to cause harm to human health, mainly because it is placed in the freezer, and it is impossible to judge how long the three-eyed crab has been dead; But if you buy a quick-frozen three-eyed crab, then you can eat it, because such a three-eyed crab is quickly frozen to death when it is alive, and then stored in a low-temperature environment, which will not breed many bacteria.

3. Generally the fattest time of the month.

As the saying goes, "nine females and ten males" means that the female crab in September is the fattest, and the male crab is the fattest in October, and the crab paste is full, and the three-eyed crab is also one of the crabs, and it also has such a rule, so the best time to eat the three-eyed crab is in the month.

4 Many people don't know why the three-eyed crab has a black substance, but in fact, the black substance in the three-eyed crab is a substance called diaphragm row rotten, which is the tissue that supplies nutrients to the crab shell in the internal tissues of the three-eyed crab.

In general, the diaphragm gradually transitions from purple-red to purple, purple-black, and black from autumn to winter, and the change of color indicates the increase of astaxanthin content in three-eyed crabs.

It depends. If the three-eyed crab dies in the freezer, it is not recommended to eat it again, and it is easy to cause damage to the human body, because it is placed in the freezer, and it is impossible to judge how long the three-eyed crab has died; If it is a quick-frozen three-eyed crab, it can be eaten, because the quick-frozen three-eyed crab is to make it quickly frozen and die when it is alive, and then stored in a low-temperature environment, in this low-temperature environment, will not breed a large number of bacteria. <

It depends on the actual situation.

Under normal circumstances, if the three-eyed crab bought home is frozen to death in the freezer, then it is not recommended to eat it again, which is easy to cause harm to human health, mainly because it is placed in the freezer, and it is impossible to judge how long the three-eyed crab has been dead; However, if you buy a quick-frozen three-eyed crab, you can eat it, because such a three-eyed crab is quickly frozen to death when it is alive, and then stored in a low-temperature environment, in this low-temperature environment, it will not breed many bacteria.

Sea crabs can be eaten when they die.

1. Sea crabs can not survive for half a day ashore, unless they are farmed, so wild sea crabs die a lot, and there are basically no bacterial parasites in sea crab seawater, because the sea water itself has high salinity, it has a certain bactericidal effect, and the bacteria multiply not so fast after the death of sea crabs.

2. The salvaged sea crabs are generally chilled or frozen, and the bacteria have not had time to multiply, so the dead sea crabs can be eaten. However, if the sea crab is exposed to deterioration at room temperature for a long time after death, it is best not to eat it if it is left for more than a day.

3. It is worth noting that the pike crab is in the ocean, and the survival rate is greatly reduced after leaving the high-salinity and high-oxygen environment. The biggest difference with river crabs is that although the survival rate of sea crabs is low, the pike crabs that die in a short time and do not emit a peculiar smell can still be eaten by humans, and their rich nutrition and tender taste are no less than fresh.

Sea crabs can be eaten as long as they do not deteriorate when they die, and you have no problem keeping them in the refrigerator for a few days, and they are frozen for a longer time. Dead crabs that can't be eaten are said to be river crabs, usually hairy crabs. When a crab is dying or dead, the hidooxyacids in the crab's body break down to produce histamine.

You can eat it, but it is not fresh, so it is recommended to wash it and eat it.

But the river crab can't be eaten when it dies, otherwise it will be poisoned. Since the river crab dies, a toxin occurs in the body. Sea crabs are edible in the refrigerator for a day or two.

Buy a dead sea crab to smell whether there is a smell, but also to weigh the weight, too light to indicate that it has been dead for a long time. The sea crab can be eaten after a day or no more than half a month of freezing.

Of course, if it dies in the sea, it's better not to eat it. There are many parasites, people are easy to get sick after eating, and it is best to put them in their own basins and raise them in clean fresh water for a few days after they are caught alive, which is counted as cleaning the digestive organs of crabs.

Nutritional value of sea crabs

The meat of the three-wart crab is delicate, sweet and nutritious. Scientists measured the basic nutrients of different parts of the crab and found that the protein content in the crab meat was the highest, followed by the male gonads, and the lowest protein content in the female gonads. The order of crude fat content of the three is reversed. Crab meat contains 20 kinds of amino acids.

Among the essential amino acids, leucine and lysine are relatively high. Among the non-essential amino acids, glutamic acid has the highest content, followed by arginine and aspartic acid.

The main lipids in the muscles of the three-wart crab are phospholipids, and the content of triglycerides is the lowest. The edible part of the crab is also rich in unsaturated fatty acids. Among them, the content of unsaturated fatty acids in the female gonads was higher, followed by the male gonads, and the crab meat was the least.

The contents of calcium, magnesium and zinc in the edible part of the crab were higher than those of abalone. The content of calcium and magnesium in the muscle is higher than in the gonads, while the levels of zinc and iron in the female gonads are higher than in the muscles and male gonads.

The above content refers to Encyclopedia - Sea Crab

Dead crab Liangnian Mountain contains a lot of harmful substances, and eating it will seriously damage your health, so it is best not to eat dead crabs. If a person eats a dead crab, it is easy to cause food poisoning, common manifestations include nausea, vomiting, abdominal pain, diarrhea, and in severe cases, dehydration, electrolyte imbalance, convulsions, and even shock, coma, sepsis, etc. This is the reason why river crabs can only be eaten alive.

Crabs are rich in protein and trace elements, which have a good tonic effect on the body. Crab contains more vitamin A, which is helpful for keratinization. Crabs also have anti-tuberculosis effects, and eating crabs is very beneficial to tuberculosis.

However, it should be noted that crabs are rich in protein, high cholesterol and high purines, and gout patients should self-control when eating, and people with colds, hepatitis, and cardiovascular diseases should not eat crabs.

The dead crab can no longer be eaten, and when the crab dies, it will produce toxins.

1.Crabs live in water, are carrivorous animals, and carry many harmful bacteria, so they must be cooked thoroughly when cooking. Because of the collapse of the crab's own immune system, the bacteria carried by the dead or dying hairy crab will multiply and invade the crab's body, decompose the amino acids rich in the crab's body, and then produce a harmful substance "histamine" and "histamine-like", causing vomiting, abdominal pain, and diarrhea, both of which cannot be eliminated by high temperature.

2.Dead crabs contain certain ingredients of allergenic ingredients, if the dead crab is eaten, it may cause allergies, mild rashes and itching, severe may cause respiratory inhibition, and then endanger health.

Therefore, dead crabs are not edible.

Can you still eat the crabs in the sea when they die, it's better not to eat them, they are not fresh. If you just die, you can still eat it, but you can't eat it after you have been dead for a long time.