TITLE:
Decolorization of triphenyl methane dyes by Fomitopsis feei
AUTHORS:
S. V. S. S. S. L. Hima Bindu Nidadavolu, Krishna Gudikandula, Shiva Krishna Pabba, Singara Charya Maringanti
KEYWORDS:
Triphenyl Methane Dyes; Fomitopsis feei; Dye Decolorization; Lignolytic Enzymes; Triphenyl Methane Reductase
JOURNAL NAME:
Natural Science,
Vol.5 No.6A,
June
18,
2013
ABSTRACT: Six
triphenylmethane dyes viz., bromophenol blue, basic fuchsin, methyl violet, methyl green, ethyl violet and malachite green
were studied for their decolorization by Fomitopsis
feei. Among, basic fuchsin (98%) was maximum decolorized followed by
bromophenol blue (96.8%). However, the rate
of bromophenol blue decolorization was very fast. There was no correlation
between the lignolytic activity and dye decolurization
of the dyes. The highest laccase and lignin peroxidase activities were
observed in basic fuchsin (46 U/mL) and methyl green (44 U/mL) respectively
after 21 days of incubation, which were poor dye degraders. The triphenylmethane reductase enzyme was the responsible enzyme for the decolorization of these triphenyl methane dyes. The
treatment by using fungal organisms was considered to be the cost-effective and
ecofriendly method of decolourization of
effluents discharged from the dye industries.