The main component of the eggshell, what is the main component of the eggshell of the egg?

The main ingredient of egg shells.

The main components of egg shells are: calcium carbonate and protein, of which calcium carbonate content accounts for 83 85%, protein content accounts for 15 17%, and also contains a variety of trace elements, such as zinc, copper, manganese, iron, selenium, etc. The eggshell is a porous structure, which is naturally formed to facilitate the metabolism of internal life, and after the egg is laid, the air chamber of the eggshell will gradually increase.

The structure of an egg is shown below:

1. Eggshell. The complete eggshell is oval-round, with one large end and one small end, accounting for about 11% of the total egg volume. Eggshells can be divided into upper shell membrane, lower shell skin, and air chamber.

The main component of the eggshell is calcium carbonate (calcium carbonate), which accounts for about 91% 95% of the whole eggshell mass, and its calcium-containing components are the same as pearls, oysters, beef bones, and small dried fish, which is good for calcium. In addition, the eggshell still contains about 5% magnesium carbonate, and 2% calcium phosphate and colloid.

2. Membrane on the shell: that is, on the outside of the eggshell, a layer of opaque and unstructured membrane; The function is to prevent the evaporation of the water of the egg.

Undershell skin: a film inside the eggshell, with two layers; Air can pass through the membrane freely.

Air cell: the void between the subcutaneous skin of the second shell; If the gas inside the egg is lost, the air chamber will continue to grow.

After the eggshell is soaked in vinegar or some acidic solution for a while, the eggshell disappears and becomes a shellless egg, leaving only a thin film.

3. Shell membrane. The shell membrane is a fibrous membrane enclosed in proteins, and is an organic fiber network composed of tough keratin.

4. Egg whites. Egg whites are semi-flowing gelatinous substances in the subshell and skin, making up about 57% of whole eggs by volume 5%。The protein contains about 12% protein, mainly ovalbumin.

5. Egg yolk. The egg yolk is mostly located in the egg white**, and is suspended by frenulum at the poles. The volume of egg yolk is about 30% 32% of the whole egg, and the main component is yolk phosphoprotein, and the fat content is 282%, the fat mostly belongs to lecithin, which is one of the phospholipid classes.

6. Placenta. A white spot on the surface of the yolk, the unfertilized one is called an egg, and the fertilized one is called a zygote, and the fertilized egg further develops into an early placenta.

7. Yolk frenulum.

The yolk is generally stratified, composed of yellow yolk and white yolk arranged in concentric circles, with a yolk heart in the middle, connected to the yolk heart neck and the placenta, along the long axis of the egg, the two ends of the yolk are composed of thick protein yolk frenulum, which keeps the egg cell in the center of the protein, plays a buffering role, prevents the egg from being the first to hatch, and is conducive to the hatching of the egg.

8. Stratum corneum.

Refers to the layer on the surface of the eggshell, similar to the stratum corneum.

9. Vitelline membrane.

The yolk membrane, part of a bird's fertilized egg, is a membrane that clings to the surface of the egg. It belongs to the primary egg membrane, which is developed from the cell membrane of the fertilized egg and has a protective function.

10. an egg shell.

The egg shell is composed of the inner eggshell membrane, the air cell, the outer eggshell membrane, the true shell, and the protective membrane.

The rest are proteins.

The following is the principle of Wang Sheng:

The uterus uses its own metabolism to produce CO2 combined with water to form H2CO3 under the action of carbonic anhydride macrozyme, CaCO3 is evenly deposited on the eggshell membrane, CO32- is combined with Ca in the blood to form CAC03, and H2CO3 dissociates to produce CO32-, which contains about 95-98% The basic component is CAC03, which forms a hard eggshell.

The main ingredient of egg shells is calcium carbonate.

1. Introduction to calcium carboate.

1. Calcium carbonate is an inorganic compound, commonly known as limestone, limestone, stone powder, marble, etc. Calcium carbonate is neutral, insoluble in water, soluble in hydrochloric acid.

2. Calcium carbonate is one of the common substances on the earth, which exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks, and is also the main component of animal bones or shells. Calcium carbonate is also an important building material and has a wide range of industrial uses.

Second, the main use of calcium carbonate.

1. Light calcium carbonate can be used as leavening agent, flour treatment agent, anti-caking agent, acidity regulator, nutritional enhancer, curing agent, etc. China stipulates that it can be used for all kinds of foods and gum gum bases that need to add bulking agents, according to GMP. It can also be used as a flour improver.

2. Used as a feed nutrition enhancer.

3. Calcium carbonate whiskers are one of the earliest and largest fillers used in the rubber industry and the plastics industry. In the rubber industry, it is widely used in hoses, rubber sheets, rubber tapes, rubber shoes and medical products, and is a good filler to reduce the cost of products. There are also a large number of applications in calcium plastic materials, such as rigid PVC pipes, plates, etc.

4. Compared with general granular calcium carbonate, calcium carbonate whiskers show significant enhancement and toughening effects. Calcium carbonate whiskers can be used to reinforce plastics, rubber. If used as a reinforcing modifier for polyamide, polycarbonate, thermoplastic polyester, ABS, PP and other resins, it can improve the bending strength, size destruction stability and thermal stability of the product while reducing the low cost of fiber branches.

5. It is used as a high-grade paper filler in the paper industry, and this paper can be used as a flame-retardant paper for interior decoration and other aspects. Calcium carbonate whiskers are non-toxic and an ideal substitute for asbestos, which can be used as friction materials instead of asbestos to make friction materials such as automobile brake pads.

The main ingredient of egg shells is calcium carbonate.

Eggshells are naturally formed. The eggshell contains 83 85% calcium carbonate, 15 17% protein, and contains a variety of trace elements, among which the content of lead, a heavy metal element harmful to the human body, is extremely low, less than 1ppm.

The key to the formation of egg shell is the deposition of calcium, the basal layer of egg shell is formed after relying on the organic scaffold composed of protein and mucopolysaccharides, and only the crystals of calcium carbonate can form egg shell after coagulation and growth between the shelf. The wax deposition of calcium changes with time, starting slowly and then gradually accelerating, and as the egg stays in the uterus until the 5th and 6th hours, the calcium deposition will remain fairly consistent until the egg leaves the uterus.

The magic of eggshells

Fresh eggshells are washed in water to obtain a mixture of egg whites and water, which can be used to rub glass or other furniture to add shine. If there is dirt in the hot water bottle, you can put a handful of mashed eggshells, add some water, and shake it from side to side to remove the dirt. The kettle of boiling water has a thick layer of limescale, which is hard to remove, and it can be removed by boiling the egg shell twice with it.

In the small neck glass bottle with unclean grease, put some broken eggshells, fill with water, and place it for 1 day and 2 days, shake it several times in the middle, and the grease will fall off by itself. If the grease is not serious, put some broken eggshells in the bottle, add half a bottle of water, withdraw to the mouth of the bottle with your hands, and shake the wheel to confess a few times to make the bottle clean.

1. The main component of egg shell: calcium carbonate;

2. Formation process: The mature follicle enters the fallopian tube, and the protein secreted by the fallopian tube envelops the yolk, and then gradually descends to form the inner shell membrane, and finally reaches the uterus, which is the place where the eggshell is formed. The basic component of the eggshell is calcium carbonate, which contains about 83 to 85 percent, and the protein deficiency content is 15 to 17 percent, and contains trace elements

Zinc, copper, manganese, iron, selenium, etc. It uses the carbon dioxide produced by its own metabolism to combine with water under the action of carbonic anhydrase to form calcium bicarbonate, dissociates and combines with calcium in the blood to form calcium carbonate, which is evenly deposited on the eggshell membrane to form a hard eggshell.

The main ingredient of egg shells is calcium carbonate.

The main component of edible vinegar is acetic acid, the scientific name acetic acid, which is also an acidic substance.

The main ingredient of egg shells is calcium carbonate.

The eggshell is naturally formed, the main component of which is calcium carbonate, containing more than 80%, as well as protein and a variety of trace elements, such as zinc, copper, fierce, iron, selenium, etc., as well as some heavy metal elements lead, arsenic, but the content is very low, the eggshell structure can be divided into five layers from the inside to the outside, and it has many uses.

Eggshells have many wonderful uses, they can be used to clean dirt in ceramic utensils, hot water bottles, glass bottles, pour the water from cleaning eggshells into flower pots, help the growth of flowers and trees, and wash clothes with water soaked in eggshells, it will be cleaner.

The benefits of eggshells placed in pots

1. Egg shells to prevent insect pests, remove the egg membrane from the collected egg shells, and then trim them into sheets. Put it on a pot to keep sluggs and small snails. The eggshell is alkaline, and the alkaline environment is not liked by many insects, and the sharp edges of the eggshell fragments make it difficult for the insects.

Therefore, it can prevent insect infestations.

2. The eggshell supplements soil nutrients, the eggshell is washed with water, then dried, rolled into small pieces, put into aluminum foil and tin foil, and then put it in the microwave oven to bake for 2 minutes. This molecular alteration of active calcium does not resemble the calcium carbonate in lime. So it is easier to be absorbed by plants.

3. Eggshells regulate soil acidity and alkalinity, most of the flower plants like slightly acidic soil, but there are also some flowers that like neutral soil. Plants that prefer neutral soil are planted in slightly acidic soil, and most of them are not well maintained. So adjust the pH of the soil.

After collecting the egg shells, they are crushed into minced pieces, put them in slightly acidic soil, and stir well. After about 1 month of inactivity, it can be used to raise plants that prefer neutral soil.