Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 15, Issue 4, 2013; Page No.(743-748)

STUDIES ON BIODEGRADATION OF “CONGO RED” USING SACCHAROMYCES CEREVISIAE AND LACTOBACILLUS SPOROGENES

BEZAWADA MANI KUMAR, PAHTURI UMA ANIL KUMAR AND VISHNU UNNAMATLA

Abstract

The discharges of effluent wastewater from the different industries originate adverse effects to the environment and leads to imbalance of bio-systems. Azo compounds are extensively being used as dyes in carpet and textile industries, the water effluent discharges from these industries leading to the water pollution in the surrounding water bodies. The conventional treatment technologies for the removal of these dye substances are less economical and cause secondary pollution. Presently, researchers have become increasingly interested to degrade azo compounds by using suitable microbial treatment technologies. The main objective of this paper is to study the capabilities of free, immobilized and co-immobilized cells of Saccharomyces cerevisiae and Lactobacillus sporogenesfor the decolourization and degradation of an azo compound “Congo Red” (CR) from aqueous solutions. The experimental data evidences that the degradation of azo compound is highly possible with the selected microbial strains and it is more with co-immobilized cells of the selected strains. The influence of various factors viz., pH and initial concentration of biomass on the degradation were verified for the optimization of the process.

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