The comparative study on biosynthesis of silver nanoparticles using Penicillium sp. and Lactobacillus sp.


Abstract:
The current research report provides the comparative analysis of silver nanoparticles synthesised extracellularly from the prokaryotic organism, Lactobacillus sp. and eukaryotic organism, Penicillium sp. Green synthesis of silver nanoparticles was followed rather than physical and chemical method to decrease the cost and toxicity. The antimicrobial activity of silver nanoparticles synthesised from Penicillium sp. and Lactobacillus sp. was studied against the pathogens, such as Salmonella typhimurium, Bacillus cereus and Bacillus circulans by well-diffusion method. From the results obtained, it was found that the silver nanoparticles produced from Penicillium sp. have better effect than prokaryotic Lactobacillus sp. The silver nanoparticles synthesised from both prokaryotic and eukaryotic organisms were subjected to Zeta potential analyser, UV-Visible Spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR) to analyse their stability, size, functional groups and surface charges. From the instrumentation analysis, it was found that the silver nanoparticles of both groups are stable and possess negative charge, but differ in the level of stability and size.

Keywords:
Biosynthesis; Silver nanoparticles; Functional groups; Surface charge; Penicillium sp.; Lactobacillus sp.

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How to cite this article:
Sivaranjani G, Mahilini B, Keerthana C, Madhan R. The comparative study on biosynthesis of silver nanoparticles using Penicillium sp. and Lactobacillus sp.. Journal of Biological and Information Sciences. 2014. 3 (2). 8-11.
Available from: http://ojournals.biolim.com/BOJ001/001/BOJ001A0026.