Abstract
Crystalline nanocellulose (CNC) was derived from banana pseudostem using acid hydrolysis method. CNC was characterized by scanning electron microscope, Fourier transformed infrared spectroscopy and X-ray diffraction. CNC was found in nanometric dimensions (18.79 ± 5.30 nm diameter and 202.12 ± 37.43 nm length) and exhibited high degree of crystallinity (81.67%). Chitosan-CNC based antimicrobial nanocomposites films were prepared by the incorporation of tetracycline and showed well-demarcated zone of inhibition against Staphylococcus aureus and Escherichia coli. Chitosan-CNC nanocomposite films showed significantly (p < 0.05) high tensile strength and good swelling properties in comparison to control CNC films. This study suggests that banana pseudostem can be used as a raw material for economic production of CNC and nanocomposites for biomedical applications.
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