Physiological activity
1, control cholesterol
One of the biggest problems in human health is cholesterol, which causes many serious diseases. Chitosan has two mechanisms to lower cholesterol. One is to prevent the absorption of fat, and the other is to excrete cholesterol from the blood of the human body. First, chitosan inhibits the activity of lipases that contribute to fat absorption. Lipase breaks down fat and allows the body to absorb it. The other is to excrete cholic acid. Once bile acid is excreted, cholesterol in the blood is used to make bile acids. These two mechanisms make chitosan a strong cholesterol scavenger. Chitosan is a natural material with strong anionic adsorption and is suitable for lowering cholesterol without any side effects.
2. Inhibition of bacterial activity
Chitosan is easily dissolved in a weak acid solvent, and it is particularly worth noting that the dissolved solution contains an amino group (NH2+) which inhibits bacteria by binding negative electrons. Chitosan inhibits bacterial activity and makes it widely used in medicine, textiles and food.
3. Prevention and control of hypertension
One of the most influential factors for hypertension is chloride (cl-). It is usually taken through salt. Many people have consumed salt in excess since 2010. Angiotensin Converting Enzyme (ACE: Angiotensin Converting Enzyme) produces angiotensin II, a material that causes vasoconstriction, and its activity comes from chloride ions. The polymer chitosan acts like a dietary fiber and is not absorbed in the intestine. Chitosan excretes chloride ions by adsorption between its own chloride and ammonia ions. Therefore, chitosan reduces angiotensin II. It helps prevent high blood pressure, especially in people who overdose salt.
4. Adsorption and drainage of heavy metals
A significant property of chitosan is its adsorption capacity. Many low molecular weight materials, such as metal ions, cholesterol, triglycerides, bile acids, and organic mercury, can be adsorbed by chitosan. In particular, chitosan can adsorb not only magnesium and potassium, but also zinc, calcium, mercury and uranium. The adsorption activity of chitosan can selectively act. It is harmful that these metal ions are too concentrated in the human body. For example, too high a concentration of copper ions (Cu2+) in the blood can cause copper poisoning and even carcinogenic consequences. Chitosan has been shown to be a highly efficient chelating medium. The amount of chitosan's adsorption capacity depends on its degree of deacetylation. The greater the degree of deacetylation, the stronger the adsorption capacity.
5, immune effect
Chitosan has a higher protein adsorption capacity; under the action of degrading enzymes (lysozyme, kitinase), chitosan is degradable; chitosan is easy to process into a line, suitable for making a line or a sheet. Medical materials; chitosan has affinity and solubility, suitable for the production of various derivatives; chitosan has higher chemical activity; chitosan has high water holding capacity; in serum, chitosan is easily degraded and absorbed; Glycans are more biodegradable; chitosan exhibits a selective effect of highly inhibiting the growth of oral streptococci without affecting the growth of other beneficial bacteria.
application
1. Chitosan for cosmetics
Cosmetic-specific chitosan has good functions of moisture absorption, moisturizing, conditioning and bacteriostasis; it is suitable for moisturizer, shower gel, facial cleanser, mousse, high-grade cream, lotion, colloidal cosmetics, etc.; Defects of glycans.
2. Chitosan for flocculant
Both chitosan and its derivatives have good flocculation and clarification effects. As a clarifying agent for beverages, the suspended matter can be rapidly flocculated, naturally precipitated, and the yield of the raw liquid can be improved; in the Chinese medicine extract, macromolecular proteins, tannic acid and pectin can be conveniently removed and purified by chitosan solution. The effective component of traditional Chinese medicine with high purity; using the adsorption of chitosan, it has a good effect in water purification.
3. Chitosan for agriculture, feed and bait
Chitosan is a natural plant nutrient-promoting agent--foliar fertilizer raw material. The foliar fertilizer made of chitosan can not only kill plants, fight disease, play a role in fertilizer, but also Decomposes the animal and plant residues and trace metal elements in the soil, which is transformed into nutrients of plants, enhances plant immunity and promotes plant health; shrimp shells and crab shells are rich in protein and trace elements. Good nutritional value.
4, UTA (adsorbent) special chitosan
UTA-specific chitosan is a series of chitosan products processed by special processes; it can effectively adsorb proteins, which is 40% higher than the adsorption of general chitosan.
5, tobacco (smoke gum) special chitosan
The product can be evenly mixed with cut tobacco, and can adhere to the surface of tobacco, can enhance tensile strength, water resistance, bursting resistance, and is not easily broken during processing, and is suitable for modern high-speed cigarette making machine; the tobacco additive can make the burning of cigarettes Significantly enhanced performance, with the effect of reducing tobacco tar and nicotine content, reducing cigarette smoke, reducing harmful substances in flue gas, improving odor absorption, aroma exposure; also effectively inhibiting mold and tobacco, prolonging tobacco preservation time.
China
