COMPARATIVE STUDY ON DECOLORIZATION OF CRYSTAL VIOLET DYE BY ASPERGILLUS FUMIGATUS (MTCC 3002) AND ASPERGILLUS NIGER (MTCC 478)

COMPARATIVE STUDY ON DECOLORIZATION OF CRYSTAL VIOLET DYE BY ASPERGILLUS FUMIGATUS (MTCC 3002) AND ASPERGILLUS NIGER (MTCC 478)

Shishir Vind Sharma1, Gopal Krishan Sahu1 and Anil Kumar*
1Department of life science, MATS University, Pandri, Raipur (C.G.)
*Department of biotechnology/Zoology, Govt. V. Y. T. P .G. Auto. College, Durg, Chhattisgarh, India- 491001
[Corresponding author E-mail*: aimum_aishley@yahoo.co.in]
Received: 28-05-2015 Accepted: 27-11-2015
Abstract:

Crystal violet (CV), which has been extensively used as a biological stain and a commercial textile dye, is a recalcitrant molecule. Aspergillus has the ability to decolorize the crystal violet dye and it is useful in bioremediation. The aim of this research work was to comparatively optimize the potential of Aspergillus fumigatus MTCC 3002 and Aspergillus niger MTCC 478. The best result of decolorization was obtained in Aspergillus fumigatus MTCC 3002 which was found to decolorize 79% of crystal violet dye from 20 to 100μM at pH-3 with additional carbon and nitrogen source and Aspergillus niger MTCC 478 was found to decolorize 55% to crystal violet dye from 20 to 100 μM at pH-2 with additional carbon and nitrogen source within 7 days. Aspergillus fumigatus was found more efficient than  Aspergillus niger.

Keywords: Crystal violet, Aspergillus fumigates, Aspergillus niger, pH

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