The new favorite cosmetics raw materials - chitosan

As chitosan has excellent biocompatibility and film, inhibitory function and significant whitening effect, moisture and stimulate cell regeneration and modified the function of the skin, it is foreseeable shell Xylanase in the field of cosmetics will play an important role.

chitosan, a scientific name-deacetylation glucosamine, is a polysaccharide polymer, because from the Xieqiao and extracted Xiake, commonly known as the chitin or chitin. Chitosan was first used as a food additive, used in recent years, beginning in cosmetics. Chitosan for cosmetics, has the following advantages:

(1) has an excellent biocompatibility and film, can be fully maintained nutrients
chitosan as an integral element composition and the human form of glucosamine important sebum film Ceramide composition of the structure is very similar, so it can interact with the table sebum film, produced a layer of fat chitosan film. Chitosan resin film has excellent scalability, take advantage of this chitosan has been used in the manufacture of artificial skin, surgical suture, and so on.
Similarly, adding chitosan cosmetics, in the human body can be formed on a layer of natural skin bionic skin, because of its good permeability, can fully maintain the active ingredient in cosmetic products such as moisturizing agents and nutrition etc. . In addition, chitosan film on the skin in the human body will form a natural barrier, can be blocked or weakened germs, such as ultraviolet and against the skin.

(2) a significant inhibitory function and the whitening effect
chitosan has obvious inhibit fungal, bacterial and yeast effect, is already used for fruit, cooked meat products Preservation, such as the preservation of cooked meat in Japan has been widely used on chitosan, Italy with chitosan fresh fruit can be stored at room temperature for one year.
Chitosan used in cosmetics, skin permeable into the hair follicles hole, inhibit and kill hair follicles hiding hole in the mold, bacteria and other harmful micro-organisms, thereby eliminating as against microbes caused acne, dermatitis, while the elimination As micro-organisms arising from the accumulation of melanin, such as colour patches. Chitosan itself can also inhibit the activity of melanin formation, thereby eliminating due to metabolic disorders caused by melanoma. Chitosan can say cosmetics is a very good performance whitening cosmetics.

(3) of moisture and stimulate skin cell regeneration and modified the function
chitosan macromolecules, many of the elements-water, has excellent water absorption and retention The chemical modification of the chitosan (such as the introduction of carboxymethyl later) to further improve its retention. As the sun and the skin, drying and aging, and other factors, will have Ganlie; increase with age, the regeneration of human cells slow down, epidermal cells will have gathered that the gap We often say that the wrinkles, the use of cosmetics containing chitosan Not only to provide nutrients such as the skin protein collagen, and Chitosan can be filled in the dry skin cracks, and table sebum film role in ceramide, and eventually grow into one of epidermal, modified to meet the beauty Effect. In addition, chitosan or a fine-induced cell growth factor, has been widely used in animal and plant cell proliferation in culture. Used in cosmetics, it can stimulate the regeneration of the epidermal cells to accelerate the speed to achieve slow aging, modified the effect of beauty.
Chitosan not only in skin care products has important applications, but also in hair care and other daily necessities of shower and also has an important purpose. Such as the use of chitosan excellent film-forming properties can be used for a variety of shampoo and hair gel.
Current chitosan mainly from Xiake or Xieqiao extracted, this approach has two drawbacks: First of all raw materials is limited, affected by seasonal restrictions on the collection, production costs are high and secondly because of types of raw materials, production processes and different origin, Chitosan the quality of instability. At home and abroad since the 1990s, began to study fermentation production of chitosan methods, such as Japan’s Asahi Glass Company in 1993 developed a fermentation process chitosan production. Beijing Chemical Industry University in 1998 also successfully developed a fermentation process the production of chitosan, the method can greatly reduce the cost of production of chitosan, fermentation production of chitosan to replace the Xieqiao Xiake or as raw material production methods become.