Analysis of gelatin/silver nanoparticle antimicrobial composite films by UV-Vis Spectroscopy (CAT#: STEM-MB-0922-WXH)

Introduction

Among the metal NPs, silver nanoparticles (AgNPs) have attracted especial attention in the food packing sector because of their remarkable and broad spectrum of antimicrobial effect against food-borne pathogens. The incorporation of AgNPs into the food packaging system could effectively inhibit the growth of pathogenic microorganisms.
Gelatin is an animal protein obtained by a controlled hydrolysis of the fibrous insoluble collagen from bones and skins of animals and fish. It is well known for its film-forming properties. In addition, it is abundantly available, with low cost, and is easily biodegradable and biocompatible. Gelatin films have excellent barrier properties against gas, oxygen and aromas at low or intermediate relative humidity. Gelatin has frequently been used as a suitable raw material to make edible or biodegradable films for effective food packaging.