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Original title:
eggshell color darker eggs more nutritious? Eat eggs and don't get into these mistakes!
is one of the most common foods in our life. Nowadays, more and more egg varieties enter our life, many rumors have also come into being: "the deeper the color of the eggshell, the more nutritious" "earth eggs are better than ordinary eggs", is this really the case?
first of all, many friends will be entangled in egg shell, egg yolk color color of the problem, think that the color of deep egg quality is better, but in fact, there is no scientific basis. The color of the eggshell is mainly determined by a pigment called the primary (also known as the ostopian), which is deposited on the outer layer of the eggshell and on the upper membrane of the shell to form the color of the egg we see. Open the eggshell, the inner surface color is the same, white.
pigment is synthesized from the eggshell glands of hens. There are individual differences in the ability of hens to synthesize the original hens, even if the eggshells of the same breed of hens have certain color differences. In other words, the color of the eggshell depends on the hen's species and is "natural" and has nothing to do with other human factors.
, are earthy eggs more nutritious than regular eggs? The answer is no. Earth eggs are considered to be naturally loose eggs, but the agricultural sector for the classification of eggs from soilless eggs, nor is it loose, non-feed soil eggs are better than ordinary eggs, and the nutritional content of ordinary eggs is almost no difference.
, how do we pick and store eggs in our daily lives? Pick a light, good eggs are translucent, slightly red, broken eggs do not see through the light, look dim; Do not rinse before storing. Some people think that the egg shell is dirty and needs to be cleaned before it can be stored, which is incorrect. There is a layer of "white frost" on the outside of the eggshell, which not only prevents bacteria from entering the egg, but also keeps the egg liquid fresh. After rinsing the eggs with water, the white frost falls off, causing bacteria to invade and water to evaporate, causing the eggs to go bad at an accelerated rate.
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