Development And Comprehensive Characterization Of Cnc-Pectin Biocomposite With Enhanced Antimicrobial Activity

Abstract

Cellulose nanocrystals (CNCs) were added to a pectin matrix to improve its structural, thermal, and antibacterial qualities, creating a unique bio composite film. The bio composite was characterized using various analytical techniques. Fourier Transform Infrared Spectroscopy (FTIR) confirmed successful interactions between CNCs and pectin through hydrogen bonding. Scanning Electron Microscopy (SEM) revealed a uniform dispersion of CNCs within the pectin matrix, improving the composite’s surface morphology. EDAX confirmed the presence of key elements such as carbon (C), oxygen (O). X-Ray Diffraction (XRD) analysis demonstrated an increase in crystallinity with CNC incorporation, contributing to enhanced mechanical properties. Furthermore, antimicrobial studies indicated significant inhibitory effects against Gram-positive and Gram-negative bacteria, suggesting potential applications in food packaging and biomedical fields. The results highlight the promising role of CNC-doped pectin bio composites as sustainable materials with improved physicochemical and functional properties.