What kind of crab can t be eaten, what crab can t eat

Poisonous crabs are: bronze cast ripe crab, embroidered spine ripe crab, Lei near Aijie crab, righteous Aijie crab, Raynaud's scale crab and so on.

1. Copper casting is as familiar as a crab

It is said that a gram of crab meat on its body can easily poison 10 people, you say that it is terrible or not! The mottled color of the whole body is to warn people not to eat it, and the consequences after eating it can be imagined, and it is distributed in Taiwan, Xisha Islands and other sea areas in China.

2. The embroidered spine is as familiar as a crab

The second place is the embroidered spine ripe crab, this crab also has super toxicity, an embroidered spine ripe crab can poison 40,000 mice, if people eat it, there is still life? It is also distributed in the sea area of Hainan in China, so don't eat it by mistake.

3. Lei Jinai Jie Crab

Leijin Aijie crab is also a kind of crab with super toxicity, mainly living in coral reefs of 2-30 meters in the ocean, and is distributed in the waters of Taiwan, China. It is understood that if this kind of crab eats more than 100g, people will be directly poisoned to death, and it is forbidden to sell.

4. Integrity loves clean crabs

The Integrity Love Crab and the appearance are very similar to the brown crab, so it is easy to eat by mistake. This crab is also highly poisonous, and after eating, it will cause a poisoning reaction, and in severe cases, it will die. It is distributed in Guangdong, Hainan and other coastal areas in China.

5. Raynaud's scaly crab

The toxicity of Raynaud's crab is also very strong, and there are cases of poisoning and death by eating Raynaud's crab every year in the Philippines, which contains a large amount of tetrodotoxin in its body, and it will be poisoned after eating.

Not all crabs can be eaten, such as dead crabs.

Dead crabs produce large amounts of histamine in their bodies. Histamine poisoning occurs when humans eat dead crabs. Because histamine is an allergic poison, it can also be said to be allergic food poisoning.

Don't think it's okay to eat just a little bit of dead crab meat. People who are allergic to histamine can cause a reaction even if they take a bite. For example, after eating a dead crab for 10 minutes and 3 hours, symptoms will appear, such as redness of the cheeks, flushing of the chest and the whole body, and conjunctival hyperemia of the eyes, as well as headache, dizziness, chest tightness, general fatigue and irritability.

Another important cause of poisoning in dead crabs is bacterial infection. Generally speaking, the living environment of wild river crabs is not as good as that of artificial and marine crabs, and once they die, bacteria inside and outside the body will multiply, decompose crab meat, and produce toxins. Comparatively speaking, the risk of bacterial infection is higher, and people are also more likely to develop bacterial infections after consumption.

Extended information: It should be noted that a crab of 3 taels and 4 taels can only eat 60 grams and 80 grams. The dietary guidelines for Chinese residents recommend that each person consume 40 grams and 75 grams of aquatic products per day, so do not eat more than one crab per day.

People with allergies, hyperuricemia or gout, pregnant women, the elderly, children, and the infirm should eat less or no crabs. If you are caught by a crab, you should immediately rinse the wound with water, disinfect it with iodine, and if the redness and swelling do not go away and the bleeding does not stop, you should go to the hospital immediately.

Dead crabs can't be eaten. After the crab dies, the crab body quickly stiffens and autolyzes, and the bacteria in the body will multiply rapidly and expand into the crab meat, which will cause vomiting, abdominal pain, diarrhea and other symptoms if people eat it.

Crabs that are definitely not fresh can not be eaten.

The main thing is that the meat of crabs that have already died will spoil.

Crabs are benign ingredients, and spoiled crabs will cause diarrhea if eaten.

1. Uncooked. The meat of crabs is delicious and delicious, but crabs are cold, and uncooked crabs are easy to cause symptoms of stomach discomfort, abdominal pain, diarrhea and other physical discomforts.

2. Not clean. Secondly, there are a lot of dirty things in crabs, and if the crabs are not cleaned, there may be gastrointestinal, spleen and stomach discomfort after eating, which poses a threat to human health.

3. Dead crabs. Finally, it is not recommended to eat dead crabs, because dead crabs contain more bacteria and harmful substances, which may cause food poisoning to the human body after eating.

Hairy crab. <>

Hairy crabs belong to the higher crustaceans. In terms of animal classification, it belongs to the phylum Arthropods, Mollusc, Decapod, Ventral Embryo, Lower Short-tailed Order, General Crab Family, Bow Crab Family, and Mitten Crab Genus. Native to China.

There are 3 species that are closest to it, namely the Japanese mitten crab, the straight-fronted mitten crab, and the narrow-jawed mitten crab. Their main feature is dense villi feet; forehead straight; with 4 sharp teeth; The width of the forehead is less than 1 m of the width of the cephalothorax; The first antennae are transverse, the second antennae are erect; The length of the third foot segment is approximately equal to the width.

The Chinese mitten crab is native to China, and the northern part of Asia, the western part of Korea and China are the main natural distribution areas of the Chinese mitten crab. At the beginning of the 20th century, the Chinese mitten crab was brought to Germany by ship, spread along the Rhine River, and now has spread all over the waters of many European countries. At the end of the 20th century, the Chinese mitten crab formed two distribution areas in the Great Lakes region and the San Francisco Bay area.

Hairy crabs are highly adaptable and widely distributed in China, from the Yalu River in Liaoning in the north to the Leizhou Peninsula in Guangdong in the south, and even in Shashi, Hubei Province, which is more than 1,000 kilometers away from the ocean. From the end of the 50s to the 60s, due to the large-scale farmland water conservancy construction, sluices and dams were built in the rivers leading to the sea, blocking the passage of river crabs, affecting the proliferation of river crabs from simplicity, and the pollution of the water environment became increasingly serious. Resulting in market river crabs ** expensive.

In the early 70s, Chinese aquatic workers began to study artificial reproduction on the basis of the survey of crab seedling resources in coastal rivers, and after more than ten years of efforts, they have solved a series of technical problems such as broodstock breeding and transportation, mating and spawning, overwintering hatching, larval cultivation and temporary breeding of crab seedlings. Zhejiang Fisheries Research Institute was the first to use seawater to artificially breed crab seedlings successfully. Then, the Chuxian Fisheries Research Institute of Anhui Province successfully used artificial brackish water to artificially breed crab seedlings, thus ending the history of crab breeding in China since ancient times and relying on natural crab seedlings, and opening up a broad prospect for the breeding and breeding of hairy crabs in various parts of China, especially in inland areas.

It is not recommended to eat crabs with some special foods when eating them to prevent adverse effects on the health of the body. In general, foods rich in tannic acid and rich in purines should be limited when eating crabs

1. Foods rich in tannins: tannin is easy to combine with the protein in crabs to form tannin protein, which is not easy to be digested and absorbed. If eaten for a long time, it may lead to the occurrence of diseases such as gastrolithiasis. Foods that are usually rich in tannic acid include tea, black dates, hawthorn, persimmons, red grapes, peaches, etc.;

2. Purine-rich foods: Crabs contain a large amount of purines, and if other purine-rich foods such as animal offal or drinks such as beer are ingested at the same time, the risk of gout may be increased;

3. Others: Traditional Chinese medicine diet therapy believes that crabs are cold foods and cannot be eaten with cold foods. For example, watermelon, white radish, eggplant, etc.

From a medical point of view, if you accidentally eat a small amount of the above foods occasionally, it will not cause obvious harm, and there is no need to worry excessively, but you should be careful not to overdo it and eat it frequently.