Biosynthesis of zinc oxide nanoparticles by using fruits extracts of Ananas Comosus and its antibacterial activity

Abstract

Biosynthesis of metallic nanoparticles using plants, enzymes, and microorganism has been known as eco-friendly alternative compared to other conventional physical and chemical methods. Recently, the biological synthesis of nanoparticles has been a keen interest among researchers and scientists due to its simple technique, eco-friendliness, non-toxic and low in cost. Thus, in this current work, the synthesis of zinc oxide nanoparticles (ZnO-NPs) using reduction agent from fruit extracts of Ananas Comosus was reported. The biosynthesized ZnO-NPs were characterized using Field Emission Scanning Electron Microscope (FESEM) paired with Energy Dispersive X-ray analysis (EDX), UV-Vis absorption spectroscopy and X-ray diffraction (XRD). The average size of the nanoparticles was found to be in the range of 30-57nm. The antibacterial activity of ZnO-NPs was performed via agar diffusion method against pathogenic organisms. It was observed that the biosynthesized ZnO-NPs in the process has the efficient antibacterial performance against Escherichia coli (E-coli). In conclusion, the green synthesized ZnO-NPs using the fruit extract of Ananas Comosus was successfully conducted and interestingly it has also been proved to exhibit antibacterial effect against E. coli strains.