GREEN SYNTHESIZED METALLIC NANOPARTICLES BY PLANT-BASED EXTRACTS AND THEIR FOOD APPLICATIONS: A REVIEW

Abstract

Studies using plant-based extracts as reducing agents contribute to the synthesis of non-toxic, environmentally friendly, and economically viable metallic nanoparticles (MNPs) as an alternative to traditional chemical reduction procedures. While the synthesized nanostructures stand out with unique features depending on the metal type, they commonly share properties such as antimicrobial activity. This review presents a comprehensive overview of recent advances in green-synthesized MNPs using plant extracts. It highlights the latest research on their applications in food packaging, as food additives, and as antimicrobial agents targeting pathogens. Furthermore, this paper discusses the toxicological aspects, safety concerns, and limitations of green-synthesized MNPs. Most studies indicate that these on biosynthesized nanomaterials are safe for use as novel food ingredients; however, further in vitro and in vivo investigations are still required to fully establish their safety and efficacy.