Evaluation of Residues and Antibacterial Effect of AgNPs Containing Packages of Fish Fillet
Nagwa Thabet Elsharawy

Abstract
This study evaluated the microbial load of fish fillet packaged with silver nanoparticles (AgNPs) containing coat and refrigerated at 4◦C/12 days. Estimate AgNPs migration from package material to the fish fillet. 12.5 kg fish fillet divided and packaged by (0.5%, 1.0%, 1.5% & 2.0%) AgNPscontents, refrigerated at 4◦C/12 days and evaluated periodically; microbiologically (TBC, TSC, Escherichia coli, Staphylococcus aureus & Bacillus cereus) and AgNPs residues in fish fillet. Results showed the clear potent effect of addition of AgNPsto packages which inhibit the growth different bacterial counts and increased by prolonged storage. The highest bacterial counts were on control samples and increased by time whoever, AgNPs packaging containing material inhibit the different bacterial counts with positive relationship by prolonged storage period and high packages AgNPs contents. The highest residues of Ag increased with higher AgNPs samples packages contents and prolonged storage period. More studies are needed on AgNPs to determine how to use it in food preservation safely.

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