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Aerobic decolourization of
two reactive azo dyes under varying carbon and nitrogen
source by Bacillus cereus
Ola, I. O.1,2*, Akintokun, A. K.1,
Akpan, I.1, Omomowo, I. O.1 and Areo,
V.O.1
1Department
of Microbiology, University of Agriculture, Abeokuta,
Nigeria.
2Department
of Pure and Applied biology, Lautech, Ogbomoso, Nigeria.
*Corresponding author.
E-mail:
olaiyabo@yahoo.com. Tel: +2348036843319.
Accepted
27 November, 2009 |
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Bacillus
cereus
isolated from dye industrial waste, that is, effluent and
soil samples was screened for its ability to decolourize two
reactive azo dye – cibacron black PSG and cibacron red P4B
under aerobic conditions at pH 7 and incubated at 35°C over
a five day period. Different carbon and nitrogen sources
were used for the decolourization study. B. cereus
was able to decolourize cibacron red P4B by (81%) using the
combination of ammonium nitrate and sucrose, while it
decolourizes cibacron black PSG by (75%) using yeast extract
and lactose.
Key
words:
Bioremediation, decolourization, textile dye, Bacillus
cereus. |
