Collagen problem

Collagen (collagen) contains a lot of glycine, proline and hydroxyproline. At the same time, because hydroxyproline in collagen is relatively uniform, it is easy to calculate the content of collagen by measuring the amount of hydroxyproline. There is little difference in the types of collagen between tendon and skin in mammals. Collagen is the most abundant protein in animals and the main component of connective tissue in organs. Collagen accounts for 25-33% of protein, and 70% of skin is collagen. Collagen plays an important role in cell differentiation, movement, chemical orientation and connective tissue repair. In addition to supporting the tissue and giving it tension. Collagen contains a lot of glycine, proline and hydroxyproline. Because there is little difference in collagen types between tendon and skin of mammals, the collagen isolated from different kinds of animals is very similar. Collagen has many physiological functions and is widely distributed. It is not a common structural protein with single structure and lack of immunogenicity and biological activity, but a functional protein with biological activity. Collagen is not the name of a certain protein, but refers to a group of protein with both common characteristics and structural differences. By 199 1 year, it was found that 13 kinds of collagen combined to form four kinds of collagen fibers. The basic unit of collagen is called procollagen, which is composed of α chain composed of about 1000 amino acid groups and has a molecular weight of about 300,000. According to the different structure and composition of α chain, it can be divided into two different α chains, namely type ⅰ collagen composed of two α 1(I) chains and one α2(I) chain, and type ⅱ, ⅲ and ⅳ collagen composed of three identical α chains. They all have repeated triple sequence structure (glycine-x-y) n. X and y can be one third of different amino acid residues. It has been clarified that the α 1 (I) chain has 1056 amino acid residues, in which10/4 constitutes a continuous triplet. The non-triple helix region is called the terminal, and has 16 N- terminal residues and 26 C- terminals, which constitute the extension of the triple helix. The α2(I) chain also has 10 14 amino acid residues to form a triple structure. There are no tryptophan residues and few tyrosine residues in procollagen molecules, so the antigenicity of the molecules is very weak and they have good biocompatibility. Collagen (collagen) can help skin tissue to form collagen fibers, prevent aging and promote the metabolism of skin cells. Collagen can be absorbed from natural foods such as gelatin and tremella. The difference between hydrolyzed collagen and bone collagen: 1. Hydrolyzed collagen: This kind of collagen is extracted by acid-base hydrolysis. The structure of collagen itself, that is, its biological activity, has been destroyed in the production process, so this kind of collagen can not give full play to its inherent characteristics whether it is used in cosmetics or food. 2. Collagen: Collagen is mostly extracted from animal bone marrow, and its basic composition is different from human skin, so it has no good affinity with human skin. Another part of collagen is extracted from gelatin, because gelatin itself has no biological activity, so this kind of collagen can not provide the performance of collagen. There are many foods containing collagen, such as chicken feet, pig feet, pig ears, tendon, sea cucumber, pig skin, chicken skin, swim bladder, fish skin, chicken tendon and so on. Flower glue is rich in collagen, which helps to supplement. Gum is also rich in cholesterol. Eating more cholesterol may increase blood cholesterol and increase the risk of heart disease. Beef tendon is also rich in collagen. Chicken feet, pig's feet, pig's ears, tendon, shark's fin and sea cucumber can be cooked together, and the oil and impurities on the upper layer can be removed after freezing, because collagen will be dissolved in water, that is, the solidified gel is natural collagen. Collagen in the human body is actually the most natural and abundant egg white in the body, accounting for one-third of the egg white in the body, and is distributed in the skin, muscles and bones, because this collagen is also called collagen. Osteoblasts and elastin in muscle skin are composed of ﹝Fibroblasts﹞ in dermis. The main function of bone glue is to create new cells, make them closely connected and replenish the water that can be stored in the body (it can absorb water 30 times higher than its own weight! Therefore, it can keep the muscles and skin tight and elastic, and prevent wrinkles. We can also understand why the amount and health of collagen in muscle skin are the main factors leading to muscle skin aging. When young, the growth, renewal and blood circulation of fine cells in the body are faster; However, after the period of youthful spring, the structure of collagen gradually becomes loose, and the addition of external environmental factors, such as air pollution and ultraviolet rays, will accelerate the aging of the skin, become dull and lose its elasticity. Its real body has the ability to make bone glue, but with the growth of age, the ability to make bone glue will gradually decline. So, can you take bone glue to supplement your skin? The answer is: "No! 」 。 Bone glue can not be directly supplemented from food, because it will be dissolved by the body, so it can only rely on skin care products. Is there any way to stop the loss of bone glue? It is a fact that bone glue will be gradually lost with the growth of age, which will make us aging. However, everyone's traffic loss rate will be different. Therefore, even people of the same age will look different, and some even look younger than their real age. You don't have to envy, as long as you can understand the source of collagen and add prevention and care, you can have "baby" skin. Yuanxiong 1: Vagrant children produced by ultraviolet rays will break collagen and accelerate its loss. The aging phenomenon caused by ultraviolet rays is called ﹝photoaging﹞. Although the aging muscle skin contains more elastic egg white cells than healthy muscle skin under the influence of ultraviolet rays, those cells are unhealthy, structurally damaged, irregular and chaotic, and then unhealthy collagen is produced. Because of this, the elastic eggs are white and thin, but the muscles and skin are still not tight. Youzizi has been proved to be the culprit of organ failure, so all kinds of factors that produce Youzizi will accelerate aging. Yuanxiong 2: Smoking cigarettes will consume a lot of vitamin C in the body. In addition, incense cigarettes will release free molecules and harmful substances, while nicotine will narrow blood vessels and affect the function of transporting blood, oxygen and nutrients, and muscle skin will naturally break. Attention, second-hand smoke will also suffer!

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