Chitosan is a cationic
polymer with different biomedical, biotechnological, environmental, industrial
and agricultural applications. Various methods were suggested to preparechitosan from its natural ancestor polymer, chitin, but the controlling of the
molecular weight and degree of deacetylation of the resulting polymer was a
problem where there is an inverse relationship between them.
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| Chitosan |
This study aimed at
modifying the sequence of deacetylation process in combination with number of
cooling/heating cycles for chitin to produce chitosans with high molecular
weight as well as enhanced deacetylation. The produced chitosans were tested
for their molecular weights, chemical structure, deacetylation degrees,
antioxidant properties and purity. With the proposed modification of polymer
deacetylation, different chitosans of different degrees of deacetylation but
similar molecular weights were prepared. This may represent a more economical
method for the production as well as applications of different types of
chitosan. Read more>>>>>>
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