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Under the care of doctors, many people finally understand the relationship between eating and resistance.
Although there have been many controversies in nutrition, it is an uncontroversial conclusion that dieting or nutritional deficiencies will lead to a decrease in immunity. Eating well and eating more nutritious foods can help our body build a strong fence.
The characteristics of the age of decades of overnutrition have paralyzed many people, making them mistakenly believe that they are no longer malnourished. What we need to worry about today is indeed not whether we can't afford it, but whether it is balanced and whether it is too inefficient.
Reasonable diet is a scientific issue, and doctors’ opinions should be heard. And my personal experience or family habits are not necessarily reliable
Recently everyone has listened to the doctor’s advice to eat more meat, eggs, and milk. Eat more meat, eggs, and milk. The scientific meaning behind it is to advocate increasing the intake of protein. Protein is of special importance for building immunity. Conversely, it is necessary to prevent excessive intake of grains, which may cause excessive sugar intake or single nutrition.
Put the topic of meat and milk aside for now. Today we will talk about eggs alone. This is an indispensable ingredient in life. Let’s see how important it is, why it is worth eating, and how to eat it. .
One, why are eggs worth eating?
There are two aspects to this problem. One is that for the body, eggs mean precious nutrition. The other is that for the tongue, egg means an irreplaceable taste.
Everyone may have noticed a phenomenon, not to mention carnivores and omnivores in nature, even those who are usually vegetarian, once they encounter bird eggs, they may have a cheeky and red eyes and eat them quickly.
Everyone loves to eat eggs, and eggs are a wonderful gift from nature. It is even more common for the ingenious and bold human ancestors to eat bird eggs.
Eggs have always been an important component of homemade flavor. In the old neighbourhood where chickens and dogs hear each other, the sound of chopsticks beating eggs and the scent of scrambled eggs from the kitchens of every household are signals to go home and start a meal, making people's salivary glands work crazy.
Why are eggs so fragrant and so greedy, because they are rich in protein. The protein itself is an eye-catching taste signal.
Protein is an essential component in living organisms on the earth, and participates in every process of cell life activities.
Protease catalyzes various biochemical reactions in the body and is essential for human metabolism. There are also many structural or mechanical proteins, which are human building materials and participate in the formation of intracellular support networks to maintain the cell shape. And protein has a particularly critical role in building human immunity.
In short, without protein, the human body cannot even maintain normal physiology, and it lacks protection against viruses.
Eggs are very nutritious and cheap, so eggs have always been one of the most important civilian resources.
A jar of eggs unearthed 2,800 years ago on display in the History Museum of Nanjing Museum. It comes from a Western Zhou tomb and is the earliest egg discovered in China.
The domestication of chicken , Make the source of eggs become stable, and the breeding of high-quality layer breeds makes it a reality for everyone to eat eggs every day.
Today's dedicated laying hens can lay eggs every day. White Laihang chicken originating in Italy is a master of egg laying, and the excellent strains can produce more than 300 eggs per year. The native chickens usually produce 100-130 eggs per year.
Laihang Chicken was named because it was spread abroad from the Italian port in the middle of the 19th century. China introduced
in the 2 and 30s of the 20th century. In the breeding industry, 2 kg of feed can be exchanged for 1 kg of eggs, and the conversion rate is extremely high. So, as a source of protein, compared toThe prices of milk, meat, and eggs are much cheaper.
The digestibility of egg protein is not lower than that of milk, and most of the fat contained in it is concentrated in the yolk, mostly unsaturated fatty acids, which are also easy to absorb. Eggs are not high in calories. From a nutritional point of view, eggs are perfect food.
From a gourmet point of view, eggs are too important for the kitchen. Excluding many famous dishes with eggs as the protagonist, in more dishes, eggs are usually silent golden supporting roles. Without eggs, the gourmet world may lose half of the world.
beaten egg white or egg yolk is the basic material for many western-style baking and desserts. After being beaten, the egg whites can expand 8 times in volume and can be used to make cakes, meringues, and various desserts.
Furong chicken slices is a classic Shandong cuisine. In Chinese cuisine, protein is often given the names of hibiscus, melilotus, and moss.
People often separate egg yolk and white Use, egg yolk is rich in fat and protein, it can help fuse oil and water in the process of cooking, and can also be used to color
Second, what is the difference between chai egg and foreign egg?
Chai eggs or native eggs and foreign eggs have little difference in nutritional composition, the difference lies in the taste.
Eggs on the market have different shell colors, some are pure white, some are green and some are pink. The color of the egg yolk is also different, some are lighter, and some are attractive.
Chai eggs are indeed more flavorful, and the price is not the same, so can you tell them from the color?
is actually not working. First, the color of the yolk depends on the chicken's food. The egg yolk will be reddish only if the chicken eats food rich in carotenoids.
However, the breeding environment of chai chicken is very different, not all foods are rich in carotenoids, so darker egg yolk color is not an inherent characteristic of chai eggs. However, some farms specifically feed foreign chickens with pigment-rich feed, which will definitely produce a more orange-red egg yolk.
Let's talk about eggshells. The color of eggshells is related to the hen breed. The laying hens that lay white eggs include Laihang chicken, silky chicken, etc. The pink eggshell eggs are from Roman powder laying hens, Jingbai 939 powder laying hens, and Nongda No. 3 powder laying hens; blue eggs are from Araau, America Kana chicken, Easter egg hens, etc.; chocolate-colored eggs come from Mylan chicken, Plymouth chicken, etc.; different pigments in the hen's body can also produce eggs of other colors and various gradient colors.
So how to distinguish between native and foreign eggs? In addition to factors such as size, neatness, and clean appearance, which are not completely reliable, it mainly depends on the reputation of the business.
Third, what determines the deliciousness of eggs? The growth process of
native chickens provides more flavors for chai eggs, and chai eggs are more delicious. This is a well-known fact, but this is not the only thing that determines the taste of eggs.
The taste of eggs is more related to freshness and storage conditions. Eggs with low freshness have a lot of loss of taste.
The freshness of eggs can be judged from the state of the yolk. Fresh eggs are beaten on the plate, the yolk is firm, located in the center of the egg white, and the egg white is thick and concentrated; the opposite is true for the stale eggs, the yolk is not in the center, the yolk is relatively flat, and the egg white is thin, like being diluted, at this time Regardless of which hen you laid the eggs, and whatever cooking techniques you use, there will be no fragrance anymore.
Egg Quality Tester
Air chamber height and Hough value are two objective standards for evaluating the freshness and quality of eggs. The smaller the air chamber height, the higher the egg grade.
The Huff value is the result of a calculation formula,It measures the quality of egg white, the higher the number, the higher the quality of the egg.
Domestic egg standards are divided into four grades, special grade and one, two and three grades. The height of the special grade egg chamber is less than 1mm, and the Huff value> 72; the height of the first grade egg chamber is less than 5mm, and the second egg chamber height is less than 8mm. The height of the third-level egg chamber is less than 9.5mm.
Foreign countries such as the United States, the standards are divided into AA, A and B levels. The AA level requires the air chamber height to be less than 3.2mm.
How to judge through the shell? In addition to non-governmental means such as shaking and listening to sounds and sinking into the water, the credit of the business is still mainly determined.
Although the egg is separated from the shell, there are water loss and odor problems. This is because the egg shell is actually permeable. If it can be packed into the refrigerator with a lid Better.
Fourth, what is the best way to eat eggs? There are many ways to cook
eggs, not to mention being used as a supporting role in thousands of dishes or desserts and snacks. Just as the main ingredient, there are many different ways to eat them.
From a nutritional point of view, white boiled eggs is undoubtedly the best way to eat. Boiled eggs sound simple, but there are many ways. For those boiled in the shell, they should be divided into boiled eggs, hot spring eggs, liquid eggs, and soft-boiled eggs. Boiled without shell, also divided into poached eggs, poached eggs and so on.
Chinese people are accustomed to thoroughly boiled eggs. This is a dietary habit. In addition, thoroughly boiled eggs are also convenient for businesses to peel. But such eggs are also easy to boil. The sign of boiled old is that the egg yolk has a blue edge except that the egg white becomes hard. When the egg is boiled for a long time, the sulfur element in the egg white will react and combine with the hydrogen element to produce hydrogen sulfide, and the egg yolk contains a certain amount of iron. When hydrogen sulfide meets iron, subsulfide will be produced around the yolk. iron. Such eggs are harmless to the human body, but the taste is too old.
流心蛋
Flowing heart egg means that the egg white is solid while the yolk is still liquid. Under cold water, bring the eggs to a boil, turn to low heat, and cook for 2-3 minutes. The fully cooked hard-boiled egg takes 10 minutes.
溏心蛋
The difference between the method of soft-boiled egg and liquid-hearted egg is that the eggs are laid after boiling water, and then they are removed from the heat immediately and covered, and simmered for about 8-10 minutes. The English name of 溏心蛋 is Coddle egg, and coddle also means petting.
Hot Spring Egg
On the other hand, the egg yolk is slightly solidified, but the egg white has not yet solidified. The secret of hot spring eggs is the low temperature, using the characteristic that the yolk coagulation temperature is slightly lower than that of the egg white, and using the water temperature of 6,70 degrees, the egg white and egg yolk are in a state of coagulation and non-coagulation.
is a classic breakfast with poached eggs, eggs Benedict
of boiled eggs without shells, poached eggs are more difficult, it first requires the freshest eggs. This is not easy to disperse. Some people use a little bit of white vinegar to help the egg whites coagulate, but in the end the eggs need to be drained with a colander to remove the taste of the white vinegar. The water is warm and the egg whites are completely solidified.
Poached eggs are similar to boiled eggs, beaten into boiling water and cooked.
French-style baked egg cup, whether it is boiled or baked, the egg whites are just solidified and tender, and the yolk is slightly fluid, which is more attractive.
Chinese food Scrambled eggs with chopped pepper. Boiled eggs give people the feeling that the taste is weak, but fried eggs and scrambled eggs have a strong flavor impact
However, the scrambled eggs in Western food pursue a creamy and tender effect
Hao horizontal hard dishes, Scottish omelette
The soft-boiled eggs soaked in marinade, full of obsessive obsessive obsession with details
Western-style egg rolls are like a pillow, and the slightly harder egg skin pillowcase is wrapped with a slightly fluid Western-style scrambled egg pillow core
Chinese egg rolls, generally referring to steamed meat eggs Volume
Omurice, a kind of Japanese food and Western cuisine, a product of the fusion of Japanese food culture and Western food, now popular throughout East Asia
Devil eggs, originated in the United States New York, the characteristic is that the yolk of the boiled egg is taken out, seasoned with various spices, and then beaten until smooth, and then used in the egg white bowl to decorate or fill
The steamed egg custard is nutritious and technical It is not easy to make a mirror-like smooth and supple baby's skin
Egg flower soup is the most simple and delicious nutritious soup
An egg beat A large bucket of free egg soup is the work of many canteen masters
- The End -
Text| 墨墨Knows
Picture| Network
-Reference material-
[1] "Why do eggs have different colors? 》果壳网
