Oysters

Things about oysters(1)

Difference between raw flies and oysters

Raw flies and oysters are very similar in appearance, in fact, raw felids are considered a kind of oysters. There are more than 100 species of oysters found in the world, and the raw frog can be considered a superior species of oyster.

The biggest difference between oysters and oysters is that they are bigger, fatter and more nutritious, and they are cultivated with stricter requirements for water quality and sterilization, so raw frogs can be eaten raw, and are often eaten as sashimi in Japanese restaurants (if eaten at home, it is recommended that they be cooked to avoid bacterial infections).

Life and reproduction characteristics of oysters

Oysters live in the intertidal zone and subtidal water depth of not more than 10 meters in the range of the oyster can be seen when the sea adsorption of a large number of oysters on the reef, oysters are mainly micro-algae in the ocean and the plankton to feed on the May-August each year is the oyster's reproductive period, so the West used to have a tradition of oysters do not eat oysters without the R (the letter of the letter in the 4 months of the year May, June, July, and August without R). Nowadays, 95% of oysters are farmed artificially.) Nowadays, 95% of oysters are artificially farmed and the scientists have cultivated triploid oysters, which are unable to reproduce and put their energy into growing meat, which is much more delicious and fatty.

The things about oysters (2)

Nutrition and efficacy of oysters

High nutritional value: oysters are rich in protein, a complete range of essential amino acids, and also rich in vitamins and minerals. At the same time, TA is low in fat and cholesterol. Fertility Improvement: Oysters are popular for their rich zinc content.

Zinc can maintain the health of the reproductive system, promote the development of germ cells, and enhance the quality of male tadpole beauty: oysters contain copper and iron and other minerals, which can prevent iron-deficiency anemia, and contains zinc can prevent skin dryness, decomposition of melanin, and promote skin metabolism.

Cardiac health: oysters contain high content of taurine, which can not only protect cardiomyocytes to prevent cardiovascular diseases, but also play an important role in the development of retina and central nervous system to strengthen the body: oysters also have high content of calcium, which can prevent osteoporosis, and it contains 8 kinds of human body necessary amino acids, lysine has the highest content, and it has a positive effect on the enhancement of the body immune system.

The role of oyster shell

Oysters, in addition to meat, TA shell is also very useful. Oyster shell contains more than 90% calcium carbonate, which can be used in many fields, such as in the field of medicine, it is a traditional Chinese medicine with the effect of calming the spirit and nourishing the heart, eliminating fire and heat, calming the liver and quenching the wind.

Things to know about oysters(3)

How to clean, prepare and preserve oysters

Most artificially propagated oysters have been processed without the need to spit out the sand, and only need to be washed off with a brush using light salt water or baking soda to remove the sediment on the shell. Oysters can be steamed or grilled, so be sure to cook them before serving.

Steaming without shell:Boil water in a pot and steam for about 3 minutes.

Steamed oysters on the half shell:Boil water and steam for about 5 minutes.

Steamed oysters on the whole shell:Place in a pot with cold water, high heat throughout, and steam for 3 minutes after the water boils.

Charcoal grilled oysters: Grill oysters on the half shell over high heat for about 10 minutes, until they squeak.

Oyster preservation:Oyster's resilience is ranked among the top aquatic animals, even if dehydrated can survive for a long time, home preservation can be rinsed oysters, placed in a clean basin covered with a damp cloth to keep the moist environment into the box refrigerated storage, can be kept for about 3 days.

Is there any part of oyster that can't be eaten? What are the green and black edges inside?

Oysters can be eaten except the shell. Oysters are vegetarian shells that grow up eating seaweed. The green color is usually undigested seaweed, which is a natural plant. And the black surrounding is the skirt of the oyster, skirt color shades do not mean dirty, but with the oyster's growth environment, innate genetics and eating algae related. As long as the oysters are not stinky and spoiled, all of the above are edible.

Things to know about oysters (4)

How to pick raw flies?

Look at the shape:Raw flies are usually flat on one side and bulging on the other (steamed raw drums face down), the higher the bulging part means the meat is more plump, don't buy raw consumption that is flat on both sides.

Touch the shell: fresh raw consumption of general closed shell, if encountered when the open shell can be touched, if the shell immediately closed on behalf of the fresh, on the contrary, it may not be fresh, do not recommend buying.

Listen to the sound: 2 raw han to knock, the sound of the deeper the meat is more plump, the same can also be used to turn the weight of the frog upside down, choose the one with more weight.

Smell: fresh raw Han smell with seawater flavor, but no fishy smell, if the fishy smell is too heavy, that is not fresh or even rotten, can not buy.

How to choose fly oil?

Oil is oyster boiled seasoning, is commonly used in the family flavoring agent, can be deodorized to increase the fresh taste, put the fly oil do not need to put vinegar, monosodium glutamate, chili pepper, etc., so as not to cover up the fly oil itself flavor.

The first few places in the recipe list of oil consumption are generally fly juice, water, sugar, salt, etc., if the water is placed in the first place, it is not considered oil consumption is not recommended to buy. Ordinary fly oil juice is generally below 50%, will use other fresh flavor agent to refresh, such as monosodium glutamate, etc., the recipe is relatively complex, high-quality oil consumption of juice in more than 50%, the recipe is relatively simple, but the price is also more expensive!

Those things about oysters (5)

Oysters can also produce pearls?

In addition to mussels, some saltwater shellfish can also produce pearls under certain circumstances, including some types of oysters, and the process of their pearl production is actually the process of TA fighting against the invaders when the oyster opens its shell parasites may take advantage of the opportunity to enter, at this time the oyster in order to protect itself will produce a substance called mother-of-pearl.

The oyster will produce a substance called mother-of-pearl to protect itself, and distribute these substances around the parasite. As time goes by, the mother-of-pearl is more and more, and the pearl will be formed gradually.

The pearl formation is not only related to the type of oyster, but also related to the quality of the living water, the freshwater oyster produces pearl in about 3 years, and the brackish oyster produces it in about 5-20 years.

Little oyster, big role

Oysters, in addition to its rich nutritional value, also has the function of water purification, the oyster is placed in a container with sewage, within an hour that can filter 5 liters of water. Through the filtering behavior, it can reduce the suspended particles and excess organic matter in the water to enhance the water quality, which has become one of the biological measures to deal with sewage in many coastal areas in the world.

At the same time, oysters gather in large numbers on the reef to form oyster reefs, which are important coastal habitats, and when typhoons and other disasters strike, TA can effectively mitigate the impact of the waves on the coastal zone and reduce shoreline erosion.