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Chitosan was extracted from Aspergillus niger mycelium and characterized by several techniques (FTIR, 1H-NMR y 13C-CP-MAS-NMR, TGA, DSC and XRD) with a reaction yield of 5.02%, and its average viscosity molecular weight was 1.52 x 105 g/mol. Deacetylation degree was determined by elemental analysis and 1H-NMR, being around 75%. Chitosan films were obtained by film casting, using glycerol and oleic acid as plasticizers, the chitosan films were characterized by SEM and XRD. Degradability in vitrodoi:10.4172/1747-0862.1000174 fatcat:yuv37sb3orcn5j6bxrcuin2xju