EFFECT OF DIFFERENT CONCENTRATION OF SODIUM CHLORIDE ON THE GROWTH OF BACTERIAL FORMS ISOLATED FROM PETROLEUM PRODUCT

Petroleum hydrocarbon contamination in soil is the major problems resulting from the activities related to petroleum industry, automobile garage/shops, and accidental release in soil. Soil samples from petroleum-contaminated soil were collected from petroleum storage tanks in Ajmer district of Rajasthan. In this work 28 oil degrading bacteria were isolated, identified and characterized by colony morphology, staining and biochemical characteristics based on “Bergey’s Manual of Determinative Bacteriology” and “Bergey’s Manual Of systematic Bacteriology”. Salt tolerance NaCl ability of bacteria isolates to various concentration were studies. The result indicated that sodium chloride appeared to be favourable for majority of bacterial forms at various concentrations. The range of salt tolerance by the bacteria isolates were studied using different concentration of the salt sodium chloride NaCl -2.0% to 13.0%.