Characterisation of Dominant Chromate Reducing Bacteria in Soils Surrounding Tannery Industries

Mabel Joshaline.C, Ponlakshmi. M, Jenifer.G

Objective: To investigate  the dominant bacterial isolates in the soil surrounding the tannery industries capable of chromate reduction. Methods: Plate count method to isolate bacteria from soil. Biochemical charcterisation of the bacteria by routine identification methods by bergy’s method and determining their chromate reduction potency by dilution plating technique. Results: Four dominant bacterial isolates were identified from the collected soil samples. .Biochemical identification protocol infers the four isolates to be Pseudomonas, Bacillus, Enterobacter and Kelbsiella.  The highest concentration of Cr(VI) was reported as 250µg/ml.