Crayfish are also known as crawfish, red crawfish, and freshwater crayfish. It resembles shrimp and its shell is hard. The adult is about 5.6 to 11.9 centimeters long, dark red, and the carapace is nearly black, with a wedge-shaped stripe on the back of the abdomen. The larvae are uniformly gray, sometimes with black ripples. Chewing narrow. The middle of the carapace is not separated by a mesh-like void, and the carapace is distinctly granular. The frontal sword has a nick on the side spine or frontal sword.
It is a freshwater economy shrimp and is popular with people because of its delicious meat. Due to its omnivorous nature, fast growth, and strong adaptability, it has formed an absolute competitive advantage in the local ecological environment. Its feeding range includes aquatic grasses, algae, aquatic insects, and animal carcasses, etc. They also kill each other when food is scarce. Crayfish has become an important economic breeding species in China in recent years. In the process of commercial breeding, it should be strictly prevented from escaping, and in particular, it must be prevented from fleeing into the untouched original ecological water body. It causes destructive damage to the ecological advantage of local species.
However, do you know what people are not suitable for eating lobsters, and what dietary taboos should be observed when eating lobsters?
Suitable for lobster season
Eating lobster is a season from May to October each year. During this period, the crayfish are more plump, and the best time is from June to August. During the growth of the lobster, the meat became full in June. In June, July and August, it was the best time for the lobster to grow. It was also the best time to eat. By September, it began to be empty and there was no meat. "."
The benefits of eating lobster
1. Shrimp is rich in nutrients, and its meat is soft and easy to digest. It is an excellent food for people who are frail and need to be nursed back to health after illness.
2. Shrimp is rich in magnesium, magnesium has an important regulatory role in heart activity, can well protect the cardiovascular system, it can reduce blood cholesterol levels, prevent arteriosclerosis, while also expanding the coronary artery, is conducive to prevention Hypertension and myocardial infarction.
3. The shrimp has a strong milk-passing effect and is rich in phosphorus and calcium. It is particularly beneficial to children and pregnant women.
4. Scientists from the Osaka University in Japan recently discovered that astaxanthin in shrimps helps to eliminate “jet lag†caused by jet lag.
The therapeutic effect of lobster
The whole shrimp is warm, sweet and salty, and it has kidney yang, stomach qi, and anti-cancer effects. Attending esophageal cancer, colon cancer, kidney deficiency, impotence, nocturnal emission, spleen and stomach weakness, hemiplegia after pelvic fire, bone pain, neurasthenia.
Shrimp shell nature, sweet and salty, liver, spleen, lung, with the addition of wind, itching, insecticide, the effect of shock, attending neurasthenia, paralysis, prevention of rickets and rickets.
The selenium content of shrimp is high. Selenium has resistance to carcinogenic lead and barium, and it can increase human immunity and inhibit the formation of cancer cells. Therefore, it has an anti-cancer effect, especially in patients with low-level plasma selenium. To be significant.
Lobster suitable crowd
1. Suitable for kidney deficiency, impotence, male infertility, people with weak legs; it is suitable for children to take measles and chicken pox; suitable for calf cramps caused by calcium deficiency in the elderly.
(2) Stomatologists should not eat shrimp at the time of getting angry; elderly people suffering from allergic rhinitis, bronchitis, and recurrent atopic dermatitis should not eat shrimp.
3. Shrimp is a matter of wind and wind, and those who suffer from skin warts should not eat.
Eating lobster
1. The crayfish contains a lot of bacteria and parasites, and contains a lot of heavy metal substances, but it is basically in the head. So be sure to eat when you eat! Must not be willing to save money and eat the head together. In view of the fact that most of the crayfish sold by the hotel in order to save things are basically head-containing, then the head must be removed and inedible when eating.
2. The shrimp line must be removed. This site is second only to the second dirty part of the head. Many hotels also did not remove the shrimp line in order to save time. Therefore, it is recommended that everyone should buy home to do their own food.
3. Clean crayfish carefully and carefully. Crayfish sold outside, businesses in order to save trouble can not give you a special careful cleaning, and many unscrupulous businesses will use washed shrimp powder to wash the crayfish, the residual shrimp powder damage is quite large.
4. The last point is that the cooking time should be sufficient and can not be less than 20 minutes. In order to save fuel costs and time costs, outside businesses have a lot of cooking time is not enough, this is a hidden danger of health and safety.
5. Shrimp bogey eat with certain fruits. Shrimp contains a lot of nutrients such as protein and calcium. If they are equivalent to fruits containing tannic acid, such as grapes, pomegranates, hawthorn, and persimmons, not only will the nutritional value of the protein be reduced, but also the combination of tannic acid and calcium ions will form an insoluble conjugate that will stimulate the stomach and cause discomfort and vomiting. Dizziness, nausea, abdominal pain, diarrhea and other symptoms. Seafood should be eaten at least 2 hours apart with these fruits.
How to clean and trim crayfish
In fact, the lobsters in the hotel are only covered with savory flavors such as thirteen aromas, etc. They may not properly wash the lobsters in order to save time and make them more complete and beautiful.
1. Cut out the crayfish's large head shell, and use scissors to pick the black sate's stomach pouch where the exposed head is attached to the back;
2. On both sides of the cymbal cut off the shell, and then follow the oblique cut to whisk;
3. Pull the tail arm of its tail and pull it out to draw the black intestine;
4. Cut a knife on the back to make it more tasty (this trick is optional, look at each person's tactics);
5. Under the tap water, use a toothbrush to brush the upper and lower left and right sides. Be careful not to wash the shrimp yellow, then drain it.
Therefore, the crayfish bought from the market should be washed with clear water to avoid the residue of harmful substances such as “washed shrimp powderâ€.
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