AUTHOR=Affes Sawsan , Aranaz Inmaculada , Acosta Niuris , Heras Ángeles , Nasri Moncef , Maalej Hana 

TITLE=Silver nanoparticles incorporated with enzymatically derived chitooligosaccharides: preparation, characterization, and biological potential evaluation

JOURNAL=Frontiers in Food Science and Technology

VOLUME=4

YEAR=2024

URL=https://www.frontiersin.org/journals/food-science-and-technology/articles/10.3389/frfst.2024.1444298

DOI=10.3389/frfst.2024.1444298

ISSN=2674-1121

ABSTRACT=<p>In this work, silver nanoparticles (AgNPs) were elaborated using a simple, low-cost, and reproducible method by thermal treatment at 90°C of chitooligosaccharides (COSs), produced by chitosan depolymerization using the digestives chitosanases from <italic>Portunus segnis</italic> viscera, in the presence of AgNO<sub>3</sub>. The characterization of the obtained AgNPs, using UV–visible spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), and Fourier-transform infrared (FTIR) spectroscopy analyses, showed that they are crystalline, spherical and stable for a month at 4°C. Moreover, the biological properties of the synthesized AgNPs were evaluated, proving that they exhibited interesting antioxidant and antibacterial activities. The present investigation suggested that COSs will be a good source for the preparation of AgNPs that could be useful in different industrial and biomedical applications.</p>