We still have to keep oysters at home for a while and let them spit sand.
If the oyster dies, then obviously it can't spit out sand, so the inside is dirty, so don't eat it.
Extended data
Oyster and its related animals are all marine shells. Suitable for oyster culture in subtropical and tropical coastal areas, widely distributed in China. Oysters can be produced from the Yalu River in the north to the coast of Hainan Island in the south. Oysters are soft-shelled parasitic animals, especially those produced in the freshwater border of Yu Xian.
Oysters are mollusks. They have two shells, one is small and flat, the other is big and bulging, and the surface of the shell is uneven. Meat can be eaten and oyster sauce can be made. Meat, shell and oil can be used as medicine, also called oysters or oysters.
major constituent
It contains 80% ~ 95% calcium carbonate, calcium phosphate and calcium sulfate, and also contains magnesium, aluminum, silicon and iron oxide. After the oyster is calcined, carbonate decomposes to produce calcium oxide. Protozoa oyster contains glycogen, taurine, 10 essential amino acids, glutathione, vitamin A and B 1. B2 D, and inorganic substances such as copper, zinc, manganese, barium, phosphorus and calcium, among which leucine, arginine and citrulline are the most abundant, which is one of the highest marine species discovered by human beings so far. Guangdong in China and Taiwan Province in Fujian have more aquaculture. The meat is delicious, rich in protein, fat and liver sugar, and can be eaten raw or cooked. It can also be processed into oyster sauce or oyster sauce. The shell can be used as medicine or burned with lime. ? [2]?
nutritional ingredient
Teach you to understand the nutrient composition table of oysters. As can be seen from the picture on the left, the cholesterol, calcium, iron, phosphorus, magnesium, manganese, sodium, zinc, selenium, copper and vitamin B2 of oysters are higher than the average. The detailed description of the nutrient content and function of oysters is shown in the chart.
Oysters are rich in protein, zinc, omega-3 fatty acids and tyrosine, and low in cholesterol. Among them, the zinc content is extremely high, which helps to improve male sexual function. Note: The zinc content of six oysters is twice the daily requirement. If oysters are not fresh, it is easy to cause food poisoning. ?
Matters needing attention
Oysters, also known as "milk in the sea". It is rich in protein and zinc that human body lacks. Eating oysters can prevent dry skin, promote skin metabolism and decompose melanin. It is a rare beauty product. However, the US Food and Drug Administration (FDA) believes that oysters are the most risky food. Because it contains two destructive pathogens: norovirus and Vibrio cholerae. Norovirus may cause gastroenteritis. Vibrio cholerae can cause high fever, septic shock, skin ulcers and blisters, and even fatal septicemia. "?
Baidu encyclopedia: oysters