The benefits of fish are well known. The Chinese Nutrition Society recommends that 50 to 100 grams of fish and shrimp should be eaten per person per day. However, apart from paying attention to some of the practices, the fish has a lot of knowledge from buying to eating. In this issue, a reporter from Life Times interviewed Professor Luo Yongkang, a fishery expert at the College of Food Science and Nutritional Engineering, China Agricultural University, and Professor Chen Yusheng, Director of the Department of Aquatic Products Processing and Storage Engineering, Shanghai Ocean University Institute of Food and Fisheries. Code.
Heads pick "eight points". The size of the fish determines its taste and safety. Too small, the fish haven't matured yet, and the meat is not fresh enough, and the fishbone will be extraordinarily large. Too large means that the fish is old and has a rough texture and may contain a lot of harmful substances. Therefore, it is more appropriate to buy fish and choose the “eight-point-large†or so. For example, it is advisable for the squid and Wuchang fish to weigh 1 kg and half, squid 0.5 kg to 1 kg, and grass carp 4 to 5 kg.
Fisheye turbidity collapse, do not buy fish gray hair. To buy "chilled fish", you should first observe his eyes and eyes. Fresh fish full of eyeballs, cornea clear and clear, clear bright red silk; fresh fish eyeballs are not full, corneal wrinkles, slightly turbid, and sometimes red eyes bleeding red, pale dark grayish or gray purple; Corrupt fish eyes collaps or dry up, corneas shrink or break, and fish gills are brown or grayish white.
The water in the water tank is not the wrong color. When buying live fish in a supermarket, look at the "water color". Because it is a reflection of good or bad water quality, if there is a dark green or blue color, there may be too much algae, indicating that the water and the cleaning tank have not been changed for a long time, which may affect the health of the fish. Fish in water tanks that are clear and fluidly replaced are generally more lively.
The price is too low to buy. When the price is too low, it is necessary to consider the source, quality and safety of the fish. The risk of eating a spoiled fish will be great.
Kill live fish and eat again. The fish quality just after slaughter is not the best, because the fish will have a "sour acid" process and it will take a while to be more delicious. Small fish such as grass carp and mackerel should be refrigerated immediately and cooked after 2 hours; large fish need to be refrigerated for more than 2 hours.
Fish do not eat too red. Because of the different species of fish, there is a distinction between red meat such as tuna and white meat such as octopus. However, if the color of the fish is bright red or bright white, it is likely to be the “finance†of the dye.
Pickled not eat. Aquatic products may contain more nitrite. During the drying or salting process, some of the proteins decompose to produce amines, and nitrites combine to become nitrosamines, which has a certain risk of cancer.
Sashimi is frozen before eating. Parasites may be present in sashimi. Parasites have poor resistance to heat and cold temperatures. They can be killed after being frozen for 24 hours at minus 20°C, but the ice under the normal sashimi plate is completely Not to kill the parasite. Therefore, only if the source of the raw materials is sufficient, the fish can eat raw food.
Steam as much as possible. In all cooking methods, the steaming is the most healthy, the cooking temperature is lower and the oil is less, and it can well protect most of the nutrition in the fish without being destroyed; when boiled or stewed, part of the nutrition in the fish may be lost in the soup. In the barbecue temperature is high, easy to produce harmful substances, and the amount of oil used for cooking is also a lot of fish, destroying the health characteristics of low-fat fish; fried oil content is higher, greater damage to the fish, do not recommend Choose.
Sea Shrimp Series,Pink Shrimp,Headless Pink Shrimp,Headless Ramboo Prawn
GOLD STAR FISHERY ZHOUSHAN CO.,LTD. , https://www.goldstar-aquatic.com