The method of selecting grass carp is 1, and the fish shape is observed.
The fish with serious pollution are abnormal in shape, some with big head and small tail, and the spinous process is bent or even deformed, while others have yellow skin and blue tail.
2. Look at that fisheye.
The fresh fish is full and protruding, and the cornea is transparent and clear; If the eyeball is not prominent, the cornea is wrinkled or there is congestion in the eye, it is not fresh.
3. Smell the gills.
The gills of fresh fish are bright red and the mucus is transparent, which has the salty taste of marine fish or the earthy smell of freshwater fish; The gills of stale fish are dark gray-red or gray-purple, and the mucus stinks.
Step 4 touch the fish.
There is transparent mucus on the surface of fresh fish, and the scales are shiny and closely attached to the fish, which is not easy to fall off; The mucus on the surface of stale fish is opaque, and the gloss of fish scales is poor, so it is easy to fall off.
5. Squeeze fish.
Fresh fish is firm and elastic, and the depression disappears immediately after finger pressing, without peculiar smell; The stale fish is slightly loose, and the depression slowly disappears after finger pressing, with a slight fishy smell.
6. Look at the belly of the fish.
The abdomen of fresh fish does not swell, and the anus is white and sunken; The anus of stale fish protrudes slightly. Preservation method of grass carp When preserving fresh grass carp, you can pour 3-4 drops of white wine and white vinegar into the mouth of the fish, put it in a cool place, and change the water once a day, which can be preserved for about two weeks. If it is a dead grass carp, it can be preserved for several days without washing or scraping scales, without hollowing out its internal organs and putting it in light salt water, or in the refrigerator.
The benefits of eating grass carp are also called pomfret, pomfret, grass pomfret, Mobidick, grass (northeast), illegitimate child and so on. It, herring, bighead carp and silver carp are also called the four major fish in China. Its body is very long, slightly cylindrical, and its abdomen is scaleless; The head is flat and the tail is flat; The mouth is curved, so you don't need a mouth. Grass carp is widely distributed in the plains of China except Xinjiang and Qinghai-Tibet Plateau.
Grass carp has a simple diet, rapid growth, tender meat, delicious meat and few bone spurs. It is very suitable for cut flowers to make modeling dishes such as chrysanthemum fish, and is deeply loved by the masses.
Grass carp contains vitamin B 1, B2, nicotinic acid, unsaturated fatty acids, calcium, phosphorus, iron, zinc and selenium.
1. Grass carp is sweet and warm, and has the effects of calming liver and expelling wind, removing arthralgia, warming stomach and calming liver and expelling wind. It is a health food that warms the middle warmer and tonifies the deficiency. Grass carp is beneficial to blood circulation and is very beneficial to cardiovascular patients.
2. Grass carp has anti-aging and beautifying effects, and can prevent and treat tumors. Animal experiments show that grass carp bile has obvious antihypertensive, expectorant and mild antitussive effects. Although grass carp bile can cure diseases, it is toxic and should be eaten with caution.
3. Grass carp is rich in unsaturated fatty acids, which is beneficial to blood circulation and is a good food for cardiovascular patients;
4. Grass carp is rich in selenium, which has anti-aging and beauty effects if eaten regularly, and also has certain preventive and therapeutic effects on tumors.
For people with thin body and poor appetite, grass and fish are tender but not greasy, which can stimulate appetite and nourish.
Side effects of grass carp 1, patients with gout. Gout is caused by the increase of purine in the body, which leads to the increase of uric acid, and then uric acid forms nodules at the joints, which leads to joint pain and deformation, while fish contains purine, which is why the proportion of gout in coastal areas is much higher than that in inland cities. So gout patients can't eat fish. Eating fish will aggravate the illness and make the pain more severe.
2. Patients with hemorrhagic diseases. Hemorrhagic disease refers to the dysfunction of platelet aggregation. Fish contains a component called eicosapentaenoic acid, which can inhibit platelet aggregation. Therefore, eating fish will aggravate the bleeding symptoms of patients with hemorrhagic diseases.
3. Patients with liver cirrhosis. We often say that a person's liver is good, so his life is colorful. Once his liver is broken, his life is black and white, because once he has cirrhosis, he can't eat a lot of food, nor can he eat fish, because cirrhosis can easily lead to varicose bleeding at the bottom of the esophagus, and fish contains ingredients that inhibit blood coagulation. Therefore, eating fish for liver cirrhosis is definitely worse.
4. Tuberculosis patients. Because pulmonary tuberculosis patients need to use a special drug isoniazid during the treatment, if they eat fish while using this drug, it is very easy to cause allergies, which will not only affect the curative effect of the drug, but also lead to hypertension and cerebral hemorrhage, so it is very dangerous.