International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565 NAAS Rating: 5.31 NEW

International Journal of Chemical Studies

Vol. 6, Issue 1 (2018)
Extracellular bacterial laccase based biodegradation of Remazol Brilliant Blue R and phytotoxicity studies


Author(s): Ambika Verma and Poonam Shirkot

Abstract: Laccase producing bacteria, Pseudomonas putida LUA15.1 was isolated from rice rhizospheric soil samples of paddy fields of Una district, Himachal Pradesh (India). Remazol Brilliant Blue R (40 mg/l) was 90.21% decolorized within 48 hrs by Pseudomonas putida LUA15.1. Purification of laccase enzyme was done by using ammonium sulfate precipitation, dialysis, gel filtration chromatography and ion exchange chromatography and 94.02% decolorization of Remazol Brilliant Blue R (40 mg/l) was observed by purified laccase of Pseudomonas putida LUA15.1. UV-Visible absorption spectrum showed the decolorization of Remazol Brilliant Blue R and phytotoxicity studies revealed the degradation of Remazol Brilliant Blue R into non-toxic products by purified laccase of Pseudomonas putida LUA15.1. Seed germination, length of plumule and radicle of Phaseolus vulgaris were significantly affected by Remazol Brilliant Blue R than its degradative metabolites indicating less toxic nature of degradation metabolites as compared to dye. It was therefore concluded that Pseudomonas putida LUA15.1 and its extracellular laccase has a good potential for use in the treatment of industrial effluent containing Remazol Brilliant Blue R.

Pages: 884-889  |  336 Views  15 Downloads

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How to cite this article:
Ambika Verma, Poonam Shirkot. Extracellular bacterial laccase based biodegradation of Remazol Brilliant Blue R and phytotoxicity studies. Int J Chem Stud 2018;6(1):884-889.
International Journal of Chemical Studies