Affiliation:
1. Centre for Biomaterials & Environmental Biotechnology, Department of Biotechnology Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology Chennai India
2. Centre for Interfaces & Nanomaterials, Department of Biotechnology Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology Chennai India
Abstract
AbstractChallenges in sustainable food packaging include ensuring effective moisture and oil barriers, antimicrobial protection, and developing cost‐effective, scalable production methods. This study introduces a hydrophobic, oil‐repelling, antimicrobial coating of a guar gum (GG)‐chitosan (CS) blend applied via a dip coating approach on blotting paper. By incorporating sodium tri‐polyphosphate (STPP) as a cross‐linker, the optimized formulation (1.5% guar gum, 0.09% STPP, 1% chitosan, and 1.5% glycerol) achieved notable hydrophobicity with a water contact angle of 136.1 ± 2.2°. This study is significant as it offers a sustainable, eco‐friendly food packaging solution with enhanced hydrophobic, oil‐repellent, and antimicrobial properties.