Utilization of market vegetable waste for silver nanoparticle synthesis and its antibacterial activity

Abstract In the present study, silver nanoparticles (AgNPs) were synthesized using market vegetable waste extract. The formation of AgNPs was observed by a change in the reaction mixture colour from colourless to brown, after the addition of vegetable waste extract. The bioreduced AgNPs were characterized using transmission electron microscopy, scanning electron microscopy coupled with energy dispersive spectroscopy and other standard techniques. The antibacterial activity of the bioreduced AgNPs was analyzed for both Gram-negative (Klebsiella sp.,) and Gram-positive bacteria (Staphylococcus sp.,). The results showed that the bioreduced AgNPs effectively inhibited the growth of the tested bacterial strains. The study revealed the effective method of utilizing market green vegetable waste for the synthesis of AgNPs with high antibacterial efficiency.