M. Ramesh*, P. Jeyavel Karthick1, K. Subramanian, M. Somu Arun Raj
Department of Biotechnology, P.S.R Engineering College, Sivakasi-626140, Tamilnadu, India.
NCADDD, 25 July 2014, Organized by Department of Pharmaceutical Technology, Anna University, BIT Campus, Tiruchirappalli–620024, Tamil Nadu, India
The quality of life on Earth is linked inextricably to the overall quality of the environment. In early times, we believed that we had an unlimited abundance of land and resources today. Contaminated lands generally result from past industrial activities when awareness of the health and environmental effects. A better approach than these traditional methods is to completely destroy the pollutants if possible or at least to transform them to innocuous substances Biosorption can be defined as the uptake of organic and inorganic metal species both soluble and insoluble; by physico-chemical mechanism such as adsorption. In living cells, metabolic activity may influence Biosorption because of changes in pH; organic and inorganic nutrients and metabolites in the cellular microenvironment. It is the binding and concentration of heavy metals from aqueous solutions (even very dilute ones) by certain types of inactive, dead, microbial biomass. Biosorption is a passive metabolism independent physio-chemical interaction between heavy metals ions and microbial surface. It is a non-directed, physio-chemical interaction that may occur between metal/radionuclide species and microbial cells. The microorganisms respond to these heavy metals by several processes; including transport across the cell membrane. In the present investigation, the ability of isolated bacterial strains i.e., pseudomonas species towards sorption of Nickel, Chromium, Zinc and Magnesium was evaluated by characterizing the biosorption of these metals.
Keywords: Biosorption, Pseudomonas, Heavymetals, bacteria, physiochemical interaction.