What is collagen extracted from

When it comes to collagen, most people are familiar with it. We all know that collagen is a very important substance for people who love beauty. As people age, the collagen in the human body is also slowly lost. In order to stay young, many women who love beauty often consume collagen. Some people eat foods containing collagen, and some people choose some collagen products. So how is collagen extracted?

What is collagen

Collagen is also called collagen. A fibrous protein consisting of three peptide chains twisted into a spiral. It exists in the body in the form of collagen fibers and dissolves into gel when heated in water. It is abundant in higher animals, accounting for about 1/3 of the total protein. It is mainly distributed in connective tissue, such as 70% of the skin weight is collagen. Collagen is a glycoprotein whose molecules contain sugar, a large amount of glycine, proline and hydroxyproline, but no cysteine ​​and tryptophan. It is an incomplete protein and its nutritional value is not very high, but it is very important for the formation of animal and human skin, blood vessels, bones, tendons, teeth and cartilage, and is the main matrix of these connective tissues.

How is collagen extracted?

The main extraction methods at present are collagen hydrolysis and enzymatic hydrolysis. The process of collagen extraction is cleaning (deashing and defatting) until the fat content is 0 → enzymatic hydrolysis → filtration → filling → concentration → spray drying. The pure collagen powder produced is white. Collagen is initially extracted as a light yellow liquid substance. Because it is difficult to store and transport, it goes through the final step: spray drying, and becomes a white powder. You will only find that if you use a white cup to rinse, if you use a transparent cup, the solution is clear.

From which foods can collagen be extracted in daily life?

Tremella

Tremella is warm in nature and rich in plant collagen. For women, it is the most suitable food for nourishing the body. It is nourishing but not greasy. It has the functions of nourishing the spleen and appetite, invigorating qi and clearing intestines, promoting sleep and strengthening the stomach, nourishing the brain, nourishing yin and clearing heat, and moisturizing dryness. It has a good effect on patients with yin deficiency and hyperactivity of fire who are not affected by warm and nourishing foods such as ginseng and antlers. Tremella is rich in natural gelatin, and with its nourishing effect, long-term consumption can moisturize the skin and has the effect of removing facial chloasma and freckles. Moreover, Tremella fuciformis is a weight loss food rich in dietary fiber. Its dietary fiber can help gastrointestinal motility and reduce fat absorption. But be careful to use less sugar when cooking.

Pig's trotter

As a beauty product, pig's trotters are rich in collagen protein, but their fat content is lower than that of fatty meat. Traditional Chinese medicine believes that pig's trotters are mild in nature, sweet and salty in taste, and as nutritious as bear's paws; the collagen in pig's trotters can also promote the growth of hair and nails, keep the skin soft and delicate, and improve the body's microcirculation. Of course, the calories in pig's trotters are not low. It is recommended to boil them in water and drain the fat before eating, which will reduce the calories.

Pigskin

Traditional Chinese medicine believes that pig skin is sweet, cool in nature, and has the effects of nourishing yin, replenishing deficiency, clearing away heat and relieving sore throat. Regular consumption of pig skin can also slow down the aging of body cells, especially it can greatly improve the symptoms of yin deficiency and internal heat. 100g of pig skin has a high calorie content, about 350 calories. However, if it is made into pork skin jelly, the calorie content is not high. It can also be added to vegetables and eaten as a good cold dish.

Fish

In fact, the structure of collagen in fish is closest to that of the human body. It is also the collagen that is most easily absorbed by body tissues and has the highest absorption rate. Fish collagen mainly comes from the cartilage of deep-sea fish, so you can supplement collagen by consuming deep-sea fish.