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Chitosan biofilms, prepared by casting method at various percentage of plasticizer (PEG and glycerol), were evaluated for their biological, structural and thermal properties. The addition of PEG at 30% (w/w) and glycerol at 10% (w/w) to chitosan has increased the antioxidant activity of biofilm with the percentages of 22 and 26%, respectively. The increase of ferric reducing power was noted for the...
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