The growing need to enhance food quality and extend shelf life is driving an increased demand for antimicrobial active packaging solutions. Antimicrobial films based on gelatin (GEL) were synthesized through the incorporation of Satureja kermanshahensis jamzad , “Marzeh Kermanshahi” (MK) in Persian, essential oil nanoemulsion (MKEO‐NE) and various amounts of selenium nanoparticles (SeNPs; 0.5, 1.0, 3.0, and 5.0 wt%). The tensile strength (TS) and elongation at break (EAB) of the films were the highest, while the water vapor permeability (WVP) and water solubility (WS) were the lowest when 3 wt% SeNP was used. The Fourier transform infrared (FTIR) findings have revealed good compatibility between the GEL matrix and the integrated MKEO‐NE and SeNPs. Based on the findings from differential scanning calorimeter analysis, the glass transition temperature ( T g ) of the neat GEL film (65°C) decreased to 38°C upon the addition of MKEO‐NE. Conversely, incorporating SeNPs at concentrations ranging from 0.5% to 5% resulted in a 13°C increase in the T g value of the films. The GEL/MKEO‐NE/SeNPs film showed potent antioxidant and antibacterial activity against Bacillus cereus , Staphylococcus aureus , and Escherichia coli . The high ultraviolet (UV) barrier, antimicrobial functions, and antioxidant activity make the GEL/MKEO‐NE/SeNPs film coating a versatile and valuable solution for active food packaging applications.
Roshandel et al. (Thu,) studied this question.