The production of chitosan polymer had been cheaply optimized from
collected shrimp shell wastes collected from Syrian local sources and the
yielded chitosan was modified by subjecting molecules to the process of linking
the enzymatic partial and
to phenol compounds oxidation residues called
quinines. The phenol oxidation was done by Laccase enzyme extracted from
olive mill solid wastes (Pyrene) and liquid (jift). The amount of extracted
phenols from liquid waste was more successful than the solid wastes and thus, it
was chosen as a rich source of phenols for being grafted on the chitosan since
both of phenols and quinones had a strong activity towards pathogenic
microbes. Films were fabricated from the chitosan that was functionalized with
quinones. Thus, a double barrier was designed against pathogenic microbes
that usually attack uncovered red and white fresh meat in the slaughters and
selling places. On the other hand, the research was mainly based on recycling
the shrimp shells and olive mill residues that are useless and environmental
pollutants.
