Proporties and Synthesis of Biosilver Nanofilms for Antimicrobial Food Packaging

Author:

Baysal Gülay12ORCID,Demirci Cihat2,Özpinar Haydar1ORCID

Affiliation:

1. Nutrition and Dietetics, Faculty of Health Sciences, Istanbul Aydin University, 34295 Istanbul, Turkey

2. Food Engineering, Engineering Faculty, Istanbul Aydin University, 34295 Istanbul, Turkey

Abstract

In this original research, biodegradable corn starch (CS) and wheat gluten (wg)-based silver nanofilms were synthesized and analyzed by using goji berry extract taurine (ta), garlic extract (GC), whey powder (wh), and montmorillonite clay nanoparticles. Antibacterial-corn-starch-based nano films were analyzed by using the methods of high-performance liquid chromatography (HPLC), Fourier Transform infrared spectroscopy (FTIR-ATR), X-ray diffraction (XRD), dynamic and mechanical (DMA) analysis, and scanning electron microscopy (SEM). In addition, the antibacterial resistances of the corn starch nano films against the bacteria Salmonella and Staphylococcus aureus (S. aureus) and Listeria monocytogenes were examined and the migration assays were carried out. The migration analysis results of CS1, CS2, and CS3 nanocomposite films were found as 0.305, 0.297, and 0.297 mg/dm2, respectively. The inhibition zone of CS1, CS2, and CS3 nanocomposite films were found as 1547, 386, and 1884 mm2 against Salmonella bacteria. The results show that silver nanofilms are suitable as packaging films for the production of packaging in milk and dairy products, liquid foods, and acidic foods.

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

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