CHITOSAN: STRUCTURE, PROPERTIES AND USING
The article contains information on the use of chitosan, which is a polydisperse polymer by molecular weight D-glucosamine containing 5-15% acetamide groups and up to 1% of the groups linked to amino acids and peptides. Chitosan has unique biological activities that can induce resistance to viral diseases in plants, to inhibit viral infection in animals and prevent the development of phage infection in an infected culture of microorganisms. The ability of chitosan to clarify process fluids used in the production of juices, beer, wine, milk whey, wash water, minced production broths and other low concentrated liquid containing fine particles of organic compounds of different nature. The positively charged chitosan interact with negatively charged skin and hair. This capability is based their use in cosmetics. The manifestation of the properties of the sorbent and partly lipophilic emulsifier determines the effect of chitosan. In contrast to the plant fiber and other naturally occurring adsorbents, chitosan is more effective due to its unique molecular structure. The primary amino groups of chitosan or its complexes for efficient binding of ions of heavy metals and radionuclides in the tens of times greater than the ion exchange resins. The review presents data on testing of the properties of chitosan in experiments with farm animals are raised on contaminated feed. The results showed that chitosan, introduced in the diet of animals that ate contaminated feed, allowed to reduce the level of contamination of milk and meat in laboratory animals.