Silver Nanoparticles Loaded Active Packaging of Low-Density Polyethylene (LDPE), A Challenge Study against Listeria Monocytogenes, Bacillus Subtilis and Staphylococcus Aurerus to Enhance the Shelf Life of Bread, Meat and Cheese
Unknown authors
Abstract
Nanotechnology plays an important role in every field of science.Silver nanoparticles (Ag NPs) show the best antibacterial activity when utilized in the active packaging of food.In this study silver nanoparticles were synthesized using the green synthesis method.Characterization of the synthesized silver nanoparticles was conducted through Ultra Violet (UV) visible spectroscopy, Fourier Transform Infra-Red spectroscopy (FTIR), and Scanning Electron Microscopy (SEM).The solvent evaporation method was employed to successfully prepare a low-density polyethylene-based film containing silver nanoparticles (LDPE/Ag nanocomposite).To evaluate the antibacterial activity of the synthesized silver nanoparticles and LDPE/Ag nanocomposite, the disc diffusion method was employed against food-borne pathogenic bacteria including Listeria monocytogenes (L.monocytogenes), Bacillus subtilis (B.subtilis), and Staphylococcus aureus (S. aureus).The LDPE/Ag nanocomposite demonstrated effective performance as an active packaging material, thereby enhancing the shelf life of bread, chicken, and cheese, as assessed in the challenge study.