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Antibacterial activity of various films of PLA, and PLA containing 0.5%, 1%, and 2% of chitosan against: (A) Escherichia coli; (B) Staphylococcus aureus; (C) Pseudomonas fluorescens; and (D) Vibrio parahaemolyticus. Data are presented as mean ± SD (n = 3). Bars with different letters on top are significantly different (p < 0.05).
