File Name: chitin structure and function .zip
Corresponding Author. This review characterizes the most common natural polysaccharides and the presence of huge structural tendencies for the production of biologically active compounds, which have innovative characteristics and functions of different applications, especially in the field of biomedicine. Their applications are also demonstrated, such as: biomedicine antioxidant, anti-bacterial, anti-fungal anti-viral, hepatoprotective, cardiovascular, anti-hypercholesterolemia, anti-parasitic, anti-diabetic, detoxification, anti-tumor and immunomodulating , agriculture, food industry, textile industry, and paper making. Interestingly, the relationship between biological activity and chemical structure is elucidated for glucan, chitin, chitosan molecules with various degree of acetylation DA and Mw. In conclusion, many vital industrial and medical applications are offered, for chitin, chitosan and glucan, and they are known as vital and a novel biological compound, which have occupation priority of their compatibility low immunogenicity and nontoxic and biodegradation with non-toxic.
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E-mail: ngeza kth. Chitin nanofibrils ChNF are interesting high-value constituents for nanomaterials due to the enormous amount of waste from the seafood industry. So far, the reported ChNFs are substantially modified and chemically degraded shortened during extraction from the organisms. A mild treatment was developed to preserve the molar mass, aspect ratio, degree of acetylation and crystallite structure. The powder X-ray diffraction analysis showed the preserved crystallite structure after protein removal.
Chitin, in which the repeating unit is the same as that in cellulose except that the hydroxyl group at C-2 is replaced by an acetamido group Fig. Polysaccharides which contain amino sugars or their derivatives are called mucopolysaccharides. Chitinase may also be involved in fungal wall synthesis see Chapter 6. Several chitinases, which are glycoside hydrolase family enzymes, are produced by fungi and can have different substrate-binding site structures and are obviously specialised for different functions Zhou et al. Derivatives of chitin and chitosan have found many commercial uses from medicine to cosmetics and dietary supplements, so fungal chitinases have biotechnological applications, also Seidl, ; Hartl et al.
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