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Are "sterile eggs" an IQ tax? Can it be eaten by children?

Posting time:2022-12-02 06:09:56

Are "sterile eggs" an IQ tax? Can it be eaten by children?

A mother in the background said that there is a kind of egg that can be eaten raw called "sterile egg" in the circle of friends. It is said that the nutritional value is very high, and she also wants to buy it for her children. But after reading many popular science articles, it is not recommended to eat raw eggs. Are these sterile eggs really edible? Especially can it be given to children?

01. Sterile eggs, ask where the "bacteria" are coming from

When you hear "sterile eggs", do you think, do we usually eat ordinary eggs? Is it a fungus egg? What is this bacteria? 1. The bacteria that eggs are susceptible to infection is that it has a type of Salmonella, which is a food-borne bacteria. This bacteria may be found in the meat, eggs, and milk that people often eat. Salmonella is resistant to low temperatures and can survive for 3-4 months in the refrigerator, 2-3 weeks in water, and 1-2 months in feces in nature. But it is not heat-resistant, and when the temperature reaches 100 degrees, they die. The "sterile egg" on the market refers to the egg that has been strictly pasteurized and sterilized and has no Salmonella, but experts point out that this kind of egg is not 100% sterile and can only be called "low-bacteria egg". 2. How do eggs get infected with bacteria? There are many factors for eggs to be infected with Salmonella, but there are two ways: First, the hens are infected with Salmonella, causing the eggs they lay to be infected too. Second, when the soil or feces are infected with Salmonella, these substances may stick to the eggshell. Although the eggshell looks hard, it has many ventilation holes on the surface. The bacteria will enter the egg through the pores of the eggshell, causing eggshells fluid infection. Therefore, the production of "sterile eggs", from chicks, feed, drinking water, to the breeding environment, etc., must go through more than 20 levels of control to ensure that it reaches the standard of "sterile eggs" from ordinary eggs.

02. The appearance and value of sterile eggs

1. Clean face Because the production process of sterile eggs is strictly controlled, the eggshell is clean and natural, The egg's face is clean, and it is attractive to look at. 2. The smell is light and elegant. Many eggs have an eggy smell, but sterile eggs do not have this annoying smell, which is one of the reasons for its popularity. But in fact, the smell of eggs is related to chicken feed on the one hand. If the feed contains rapeseed meal, rapeseed oil, fish meal or choline chloride, then the chicken will produce fishy substances in the body after eating this feed, and the fishy smell of the eggs will be heavier. Another aspect has to do with the breed of chicken. Just like the mutton smell of mutton, the meat quality of some breeds of sheep is very shy, but some breeds of sheep do not have such a strong taste. Therefore, if you want the eggs to have no fishy smell, you can control them by selecting the breed of chickens and adjusting the feed formula, regardless of whether they are sterile eggs or not. 3. The color is more beautiful The yolk has a "core" position in the egg, and people like to use color to evaluate its worth. The yolk of a "sterile egg" is yellower and brighter in color. Merchants say this kind of egg is more nutritious. In fact, the color of the egg yolk is determined by the amount of fat-soluble pigment in the feed. If more beta-carotene, lutein and zeaxanthin are added to the feed, the color of the egg yolk will be more yellow, even orange-red. To sum up, sterile eggs do have less bacteria and higher appearance, but to say that the nutritional value is better, it is a bit over-marketing.

03. To be able to pick eggs, you must know how to eat them.

In addition to sterile eggs, there are many varieties on the market, such as: selenium-enriched eggs, chai eggs, Newborn eggs, farm eggs, etc. These eggs with "titles" are also much more expensive than ordinary eggs. How to choose? 1. Quick egg selection with two readings and one listening 1) It is best to buy eggs produced within 7 days according to the production date. Also put it in the refrigerator in time after purchase, be careful not to put it in the refrigerator door. 2) Look at the appearance to choose eggs with clean eggshells and no cracks, because eggs with dirt such as chicken feces or cracked eggs are more susceptible to bacterial infection. 3) When you listen to the sound of picking eggs, shake them a few times in your ear, there is no sound, you can't feel the egg liquid scattered, and they are generally fresher. As for the merchants' claims that they are rich in organic selenium, lecithin, high-quality protein, unsaturated fatty acids, etc., they are not credible. Because eggs are rich in high-quality protein, lecithin, vitamin A, amino acids and other nutrients, these nutrients have nothing to do with sterile eggs. 2. Is it more nutritious to eat raw or cooked eggs? With the emergence of "sterile eggs", many people follow the trend to eat eggs raw or soft, and feel that the tender egg liquid is more nutritious. However, studies have shown that: eating raw eggs, the absorption rate of human protein is only 55%, and eating boiled eggs, the absorption rate can be as high as 91%. Because raw eggs contain protease inhibitors, it will affect the digestion, absorption and utilization of protein. It also inhibits the absorption of B vitamins, leading to vitamin deficiency in the body. Therefore, whether it is from a nutritional point of view or a food safety point of view, it is recommended to eat boiled eggs. Parents should pay attention, not to eat raw eggs for children. In the end, as to whether it is worth paying a high price to buy sterile eggs, it still depends on your own needs, eating habits and consumption levels.

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