Collagen is the main structural protein of the various connective tissues in animal. As the main component of connective tissue, it is the most abundant protein in mammals, making up from 25% to 35% of the whole-body protein content. Collagen, in the form of elongated fibrils, is mostly found in fibrous tissues, such as tendons, ligaments and skins, and is also abundant in corneas, cartilage, bones, blood vessels, the gut and intervertebral discs. The fibroblasts is the most common cell that creates collagens.
FUNCTIONS OF COLLAGENS
Collagen has a wide variety of collections, from food to medical. For instance, it is used in cosmetic surgery and burns surgery. Collagen fibers support body tissues, plus collagen is a major components of the extracellular matrix that supports cell. Collagen and keratin gives the skin its strength, waterproofing, and elasticity. Loss of collagen is a cause of wrinkles.
Collagen-based animal glues may be made by boiling the skin and sinews of animals. Collagen is one of the proteins that gives strength and flexibility to animal hides and leather. Some sausage casings are made from this protein. Collagen is used to made gelatins. Gelatin is hydrolyzed collagen. It is used in gelatins desserts, e.g. Jell-O, and marshmallows.
*this information were taken from http://en.wikipedia.org/wiki/Collagen and http://chemistry.about.com/od/polymers/a/Collagen.htm
Collagen-based animal glues may be made by boiling the skin and sinews of animals. Collagen is one of the proteins that gives strength and flexibility to animal hides and leather. Some sausage casings are made from this protein. Collagen is used to made gelatins. Gelatin is hydrolyzed collagen. It is used in gelatins desserts, e.g. Jell-O, and marshmallows.
*this information were taken from http://en.wikipedia.org/wiki/Collagen and http://chemistry.about.com/od/polymers/a/Collagen.htm
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