BIOSYNTHESIS OF SILVER NANOPARTICLES FROM MURRAYA KOENIGII AND ITS APPLICATION IN EFFLUENT TREATMENT

*Nisha K. Raju and C. Initha Lebanon Ebency

ABSTRACT

Nanoparticles have a promising action in many fields. Plant based nanoparticle synthesis become advantageous over chemical synthesis. The curry leaf extract was prepared from fresh curry leaves by boiling it for 3 minutes, 5 minutes and 10 minutes separately. Addition of 1mM silver nitrate solution to the above extracts yielded the production of silver nanoparticles. The silver nanoparticles synthesized from Murraya koenigii showed growth inhibitory effects against Bacillus subtilis, Escherichia coli, Staphylococcus aureus and Klebsiella pneumonia. The zone of inhibition is in the order 13mm, 13mm, 15mm and 9mm respectively for silver nanoparticles. The zone of inhibition for silver nitrate alone is in the order 11mm, 9mm, 11mm and 8mm respectively. They are characterized using UV-Vis spectrometry, SEM and EDX measurements.. It also plays an important role in effluent treatment by the effective degradation of harmful textile dyes.

Keywords: Nanoparticles, Murraya koenigii, antibacterial assay and dye reduction.