Abstract
The present study demonstrates an economical and eco-friendly method for the synthesis of silver nanoparticles (AgNPs) using the wild mushroom Ganoderma sessiliforme. The synthesis of AgNPs was confirmed and the products characterized by UV-visible spectroscopy, dynamic light scattering spectroscopy and X-ray diffraction analysis. Furthermore, Fourier transform infrared spectroscopy (ATR-FTIR) analysis was performed to identify the viable biomolecules involved in the capping and active stabilization of AgNPs. Moreover, the average sizes and morphologies of AgNPs were analyzed by field emission scanning electron microscopy (FE-SEM). The potential impacts of AgNPs on food safety and control were evaluated by the antimicrobial activity of the synthesized AgNPs against common food-borne bacteria, namely, Escherichia coli, Bacillus subtilis, Streptococcus faecalis, Listeria innocua and Micrococcus luteus. The results of this study revealed that the synthesized AgNPs can be used to control the growth of food-borne pathogens and have potential application in the food packaging industry. Moreover, the AgNPs were evaluated for antioxidant activity (DPPH), for biocompatibility (L-929, normal fibroblast cells), and for cytotoxic effects on human breast adenosarcoma cells (MCF-7 & MDA-MB231) to highlight their potential for use in a variety of bio-applications.
Highlights
Nanotechnology, a rapidly growing field, has a variety of applications in biomedicine, food and engineering due to the exemplary characteristics of nanoparticles, such as biocompatibility, high productivity, speed of production, cost effectiveness and safety
The present study study was was undertaken undertaken to to explore explore the the synthesis synthesis potential potential of of the the wild wild mushroom mushroom species
The potential antimicrobial activity against food borne bacteria will be boon for the food industry to use such metal nanoparticles to reduce the contamination of food stuffs and for long time preservation
Summary
Nanotechnology, a rapidly growing field, has a variety of applications in biomedicine, food and engineering due to the exemplary characteristics of nanoparticles, such as biocompatibility, high productivity, speed of production, cost effectiveness and safety. The main disadvantages of the physical and chemical routes of synthesis are their higher operational costs, time and energy consuming steps. Their yield rate is relatively low with additional hazardous by–products possessing detrimental effects to the environment and human health [7]. The presence of various biologically active phytochemicals and metabolic compounds in biological samples eliminates the use of toxic chemicals for reducing or capping purposes during the reaction [8] Various natural resources such as plants, plant products, and microorganisms (bacteria, fungi, algae, yeast and viruses), have been explored for the synthesis of metal nanoparticles [9]
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