Biodegradation Of Malachite Green By Bacillus Spp. ETL-2412 | 12217
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
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Biodegradation of malachite green by Bacillus spp. ETL-2412

4th World Congress on Biotechnology

Maulin P. Shah, Nair S. S, Patel K. A and Darji A. M

Accepted Abstracts: J Biotechnol Biomater

DOI: 10.4172/2155-952X.S1.025

Malachite green (100 mg/L) was completely decolorized under static anoxic condition within 4 h by bacteria Bacillus spp. ETL-2412; however decolorization was not observed at shaking condition. Bacillus spp. ETL-2412 have also shown decolorization of azo, triphenylmethane and industrial dyes (cotton blue, methyl orange, reactive blue , direct blue, reactive yellow 81). Semi-synthetic media containing molasses, urea and sucrose have shown 100, 94, 86% decolorization respectively. Induction in the activities of malachite green reductase and DCIP reductase was observed during MG decolorization suggesting their involvement in the decolorization process. UV-Visible absorption spectrum, HPLC and FTIR analysis showed degradation of MG. Toxicity study revealed the degradation of MG into non-toxic products by Bacillus spp. ETL-2412.