Since ancient times, fish has always played an important role in the people's table. But what should you watch out for when picking fish? What are the "exclusive tricks" of aquatic experts when purchasing? Professor Chen Yusheng of the Department of Aquatic Products Processing and Storage Engineering of Shanghai Ocean University Food Institute told you, "Aquatic experts do not buy these 7 kinds of fish."
Spring dinner table
The most nutritious fish
Do not buy too much or too little weight
The head of the fish has a certain relationship with its taste. It is too small. The fish is not fully mature and the meat quality is not fresh enough. The fishbone may have a lot. In addition, the older the fish is, the longer it grows and the body may accumulate a lot of harmful substances. Therefore, it is advisable to buy the fish to choose the first "eight points big" or so, such as carp and Wuchang fish to 1 kg half, carp 0.5 kg to 1 kg, grass carp 4 to 5 kg is appropriate.
Fisheye turbidity collapse does not buy
The fullness of the fish's eyes can indicate the freshness of the fish. The fish eye is full and convex, the cornea is transparent, clear, and elastic, and the fish is relatively fresh. Conversely, if the fish eye is not convex, the cornea is wrinkled and cloudy, and the red blood inside the eye is red, it means the fish is not fresh.
Incomplete fish scales do not buy
The fresh fish body has a transparent mucus with a shiny scale and adheres closely to the fish body without falling off. The mussels were more opaque, and the scales were poor in luster and they had more shedding. The freshness of the fish was poor. At the time of purchase, those fish with fish scales or congested bodies, even if they are alive, are spoiled more quickly than fish with intact scales.
Abnormal fish smell does not buy
To judge whether the fish is fresh through the odor, it is important to hear the fish. The fish should have salty smell of saltwater fish or earthy smell of freshwater fish, and there should be no offensive smell. At the same time, the fresh fish's fish gills are bright red and the silk is clear; the non-fresh fish gills are broken or sticky, and the colors are grayish or gray-purple and the smell is not good.
Do not buy fish with poor tightness
Pressing the fish body with your finger, the muscles of the fresh fish are firm and elastic, and the depression immediately disappears after the finger pressure, while the muscles are slightly loose. The depression disappears slowly after the finger pressure, and the freshness is second. In addition, the observation of whether the muscles in the anus of the fish are tight can be used as a criterion for identifying the freshness. The fresh fish has a normal abdomen and does not swell. The anal hole is white and sunken. The fish that is not fresh does not have obvious abdominal swelling, and the anal canal is slightly convex.
Do not buy muddy in the water tank
When buying live fish, sometimes look at "water color". If the water in the water tank is green or there are too many algae, it means that the water tank has not changed the water for a long time. This kind of water tank environment is easy to breed a lot of bacteria, easy to pollute the fish itself, reduce the quality of fish, the freshness is greatly reduced. Usually the water in the water tank is clear, there is a pump for oxygen, the water flow is faster, and the fish is more fresh.
The price is too low to buy
Buying fish can neither be considered "expensive" nor "covet for cheap", and the price is so low that the source and safety of the fish may not be guaranteed. Consumption of spoiled fish may threaten human health.
Link spring dinner table the most nutritious fish
1, grass carp - warm tonic
Grass carp is a very common fish that is easily seen on everyone's table. Although ordinary grass carp, but it is warm stomach, Pinggan Qufeng, warming tonic health food. Buy more grass carp, which is a cheap and beneficial food.
Grass carp and tofu with the same food, with a tonic stomach, diuresis swelling effect; a special role in the myocardium and children's bone growth, can be used as coronary heart disease, high blood lipids, pediatric dysplasia, edema, tuberculosis, postpartum milk and other patients Dietetic dishes. Grass carp and fritters, eggs, pepper steamed together, can benefit eyes and eyesight, suitable for elderly warming fitness. In addition, the fish gall of grass carp is toxic and inedible.
2, octopus - Yiwu five internal organs
Hairtail has the effect of warm stomach, tonic, Ze skin, hurricane, insecticide, and make up five internal organs. For the leading edge of hepatitis, chronic hepatitis has a good role in adjuvant therapy. It should be noted that the octopus itself is relatively heavy, so it is best to use braised, sweet and sour sauce when cooking.
China's ancient and modern medical and aquatic medicinal books record that octopus has functions such as nourishing the liver, expelling wind, and stopping bleeding. It has good effects in the treatment of bleeding, sores, bloated diseases and other diseases. Bringing fish scales is a raw material for the manufacture of antipyretic tablets and anti-tumor drugs. Scale contains a variety of unsaturated fatty acids, a significant role in lowering cholesterol. Suitable for chronic illness physically weak, blood deficiency dizziness, shortness of breath, fatigue, eating less emaciated, malnutrition for human consumption. Chinese medicine believes it can neutralize appetite, warm stomach tonic, and moisturize.
3, carp - warm in the Qi
The squid has the functions of warming the stomach, warming the stomach, moisturizing the skin and other functions. Carp can provide a wealth of glial protein, both fitness and beauty, is an ideal food for women to nourish the skin. It has a curative effect on the rough skin, desquamation, and the hair is easy to fall off. It is a delicacy that can not be ignored in women's beauty. The general population can eat, the spleen and stomach heat are not suitable for human consumption; pruritus skin disease, heat, urticaria, rickets should not eat. The effect of skin beauty, but people suffering from sores and convulsions are better off.
4, black fish - Bugan Yishen
Black fish has the efficacy of supplementing spleen and water, removing stagnation, removing heat, removing phlegm, and supplementing liver and kidney. Black fish cold, sweet, return to the spleen, stomach; treatment of five hemorrhoids, cure warts, edema, can "make up the heart nourish yin, clarify the kidney water, water percolation, detoxification to heat"; with spleen and water, Freshness, heat, and other effects, indications of edema, genital warts, beriberi, acne, and phlegm embolism.
It should be noted that some people are allergic to blackfish. The symptoms are usually diarrhea, vomiting, skin rash, and back pain. There is usually no discomfort when you just eat, and it usually occurs 5 to 6 hours after eating. Therefore, children and elderly people with poor resistance should pay attention.
5, cuttlefish - Qingwei to heat
Cuttlefish also known as squid, there is nourishing liver and kidney, qi and blood, Qingwei to heat, nourishing, eyesight, pass through, tocolysis, benefit production, bleeding, prolactin and other effects.
According to traditional Chinese medicine theory, squid tastes salty, flat, and enters the liver and kidney; it has the effects of nourishing blood, regulating circulation, promoting milk, invigorating the spleen, benefiting the kidney, nourishing yin, regulating menstruation, and stopping the belt; it is used to treat menstrual irregularity in women. Edema, warts, acne, athlete's foot embolism. Cuttlefish and spine can be used as medicine. Li Shizhen said that cuttlefish is a “blood drug†and is a good medicine for treating anemia and blood deficiency in women.
People with spleen and stomach deficiency should eat less; People with cardiovascular diseases such as hyperlipidemia, hypercholesterolemia, arteriosclerosis, and liver diseases should be cautiously eaten; People with eczema, urticaria, gout, kidney disease, diabetes, allergies, etc. Do not eat.
6, carp - Jianpi appetizer
Eel has spleen appetite, diuretic swelling, cough and asthma, fetal milk, detoxification and other effects. The protein content of squid is not only high, but also of good quality. The body's digestion and absorption rate can reach 96%, and it can supply essential amino acids, minerals, vitamin A and vitamin D. Every 100g of meat contains 17.6g of protein and 4.1g of fat. Calcium 50mg, Phosphorus 204mg and various vitamins. Carp fat is mostly unsaturated fatty acids, can well lower cholesterol, can prevent arteriosclerosis, coronary heart disease.
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