"Wow, my face is full of collagen!
The phrase has become the ultimate compliment to women,
Every woman wants hydrated skin,
Keep your girlish youth active,
But time is no mercy,
Aging is always creeping into our bodies.
Collagen acts like a mattress spring in your skin, and enough collagen helps to hold in moisture, keeping your skin firm and elastic. It is an important substance to repair damaged tissues and a substance that must be added to delay aging.
Animal tissue (skin, bone, tendon, membrane, etc.) is the main way for people to obtain natural collagen and collagen peptide. Collagen extracted from animal tissues is rich in nutrition, but its unique superhelix structure makes it very stable in nature, and only 2.5% of it is absorbed and utilized by human body. Therefore, it is impossible to replenish collagen by eating pig feet, skin and other collagen-rich foods simply to "make up for what you eat".
If collagen is further hydrolyzed into collagen polypeptide, its digestion, absorption, nutrition and functional properties can be significantly improved, and the problem of difficult absorption can be easily solved. Therefore, the further hydrolysis of collagen to prepare small molecule peptides has become a hotspot in the collagen market.
Collagen peptide was prepared by enzymatic method
At present, the common preparation methods of collagen peptide include acid method, alkali method and biological enzyme method. Acid and alkali methods, due to environmental pollution, react violently, easy to destroy the nutritional composition of the product, and it is difficult to control the reaction degree, the more important point is easy to produce ash and salt after the reaction, affecting the quality of the product.
Enzymatic extraction is widely used due to mild hydrolysis conditions, fast reaction rate, the extracted collagen still has a complete three-strand helix structure, high protein purity, stable physical and chemical properties, and no environmental pollution.
Collagen with a relative molecular weight of up to 300,000 daltons is processed by protease to form a small peptide with a relative molecular weight of several hundred to several thousand, which can be directly and effectively absorbed and utilized by the human body after consumption with an absorption rate of up to 90% or even higher.
Generally speaking, the smaller the molecular weight of collagen peptide, the more easily absorbed by the body. However, when the molecular weight is too small, the structure of collagen peptide is easily destroyed and its function is relatively affected. Even if absorbed by human intestines and stomach, it can only achieve the function of supplementing corresponding amino acids. Compared with the acid method and alkali method, the enzymatic method with mild and controllable reaction has further advantages.