After the living conditions of modern people have become better, the requirements for all aspects of life have become higher and higher, and their lives have become more and more exquisite. Any food choice has its own set of guidelines, such as the choice of eggs, the location of ordinary eggs in the mall is generally not cared about, and the stalls of various types of native eggs are full of people.
This is because everyone believes that the nutritional value of native eggs is high, and it is pure and harmless, and it is beneficial to health after eating. Most people identify native eggs mainly by looking at the color of the yolk, and the darker the color, the more pure the egg, and it must be a native egg. Some egg yolks are whiter in color than foreign eggs, which is actually a misunderstanding.
<h1 class="pgc-h-arrow-right" data-track="3" >, the yolk color does not explain the problem</h1>
CCTV once did a "native egg counterfeiting" program, in which the experimenters added some "egg yolk essence" to the feed, and the color of the egg yolk became darker.
As introduced in the show, the scientific name of this "egg yolk essence" is "afterrime" or "afterathanin", which is a colorant. The main component of egg yolk essence is some carotenoids, which change the color of the animal's skin and yolk after feeding the animal. In the United States, the European Union and even our own countries, it is allowed to add coloring to change the color of meat and eggs.
But we can not judge the color of the egg yolk is good or not, there are many foods in life that contain lutein, lutein is also a kind of carotenoids, easy to dissolve in fat, yellow when the concentration is low, the color is dark and close to the orange. When chickens ingest foods containing lutein, lutein is deposited into the skin and yolk, which is the same as the role of lutein.
The so-called "native eggs" purchased daily are likely to be only the daily diet of the hens rich in lutein or added yolk essence, and the nutritional value of such eggs is no different from ordinary eggs, but the price is much different.
<h1 class="pgc-h-arrow-right" data-track="37" > second, dyed eggs passing off as native eggs, the price can be doubled by 7 times</h1>
Fan Zhihong, a food safety expert at China Agricultural University, said that dyed eggs are not "fresh", they existed many years ago, and they are common at home and abroad.
Chickens eat feed and eat foods containing carotenoids in the process of feeding, which is to "dye" the eggs, which is why the yolk color is somewhat red and somewhat yellow. In the feeding industry, as long as the additives are added, they can be considered safe.
China stipulates some colorants that can be safely used, allowing the use of adding these colorants to dye eggs, but "stained eggs" still has food safety risks.
A dye salesman told reporters: "Individual farmers think that the price of a few hundred pieces of a kilogram of dye is too expensive, they will choose cheaper dyes, and may also choose industrial dyes banned in some countries. ”
When the reporter searched, he found that the price of a kilogram of dye sold on the e-commerce platform was about 500 yuan, and the dye introduction mentioned that a ton of feed was added to 100g of dye, and the egg could be turned red in three days.
Many people in the cognition of the egg yolk color is more red and higher nutrition, do not know that the "native eggs" you buy is likely to be just added dye! The price of a pound of normal eggs ranges from 3 to 7 yuan, and the price of native eggs on the e-commerce platform can be doubled to 7 times! A pound of eggs of 43 yuan are bought by many people, and there is no difference in nutrition between eggs and ordinary eggs that have been bought at a large price, and may even buy some eggs with industrial dyes added... It can really be said that the lady has lost and folded the soldiers.
Regarding eggs, in addition to the color of the yolk affecting the price, the difference in categories will also affect the price. There are many kinds of eggs sold in supermarkets, including native eggs, foreign eggs, mountain eggs, etc., of which foreign eggs refer to the eggs under caged chickens, and the price of foreign eggs will be much cheaper than native eggs, in fact, these two have different nutritional values, and there is not much difference.
<h1 class="pgc-h-arrow-right" data-track="43" >3, what is the difference between "native eggs" and "foreign eggs"? </h1>
"Originally homologous", why is the price difference between native eggs and foreign eggs so large? Does the loftiness of the "earth egg" really make sense?
Caged chickens eat feed that has been scientifically proportioned, so the foreign eggs produced have a high content of iron, calcium, magnesium and other elements. And caged chicken feed will also add dietary fiber, eggs in the cholesterol, fat content are relatively low, especially suitable for the elderly to eat.
Compared with foreign eggs, real native eggs will taste better. Because the fat content in native eggs is relatively high and the yolk is large, it is very suitable for boiling and frying.
So how do you choose the real eggs in life?
Mainly from three aspects to identify:
(1) Appearance: The size of the native egg will be smaller than the normal egg, and the color is relatively light, the fresh native egg will have another thin white film on the outside of the eggshell, and the eggshell is relatively hard; the eggshell is generally thinner and the color is darker.
(2) Taste: Compared with foreign eggs, native eggs will taste more fragrant and have no fishy taste.
(3) Egg yolk: Although the native egg will be smaller than the size of the foreign egg, the yolk of the native egg will not be smaller than the foreign egg. Native eggs are characterized by less egg white and more yolks, and foreign eggs are the opposite.
In fact, we only need to spend the normal price to buy fresh eggs to eat in life, there is no need to spend high prices to buy the so-called "high-nutrition eggs", which is likely to be just a gimmick hyped by merchants in order to increase prices.
Resources:
[1] Are native eggs more nutritious and safer? 》. Medicine, Dietary Health Care. Cloud Heartless.
[2] "Native eggs can be dyed with pigments and pose a threat to health when eaten". Chinese Food.
[3] Are native eggs more nutritious and safer? 》. Food & Life. Liu Shaowei
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