ABSTRACT Degradation of a pesticide,
malathion, in soil by Bacillus sp
has been reported during current study. A simple and highly sensitive reverse
phase HPLC-UV (High pressure liquid chromatography-Ultraviolet) method was used
for determination of malathion degradation
in soil. The bioremediation of was performed in malathion contaminated
sterile and nonsterile soil and it was found that 84.81% and 74.11% of malaoxon,
respectively, from malathion concentration of 1.5% kg-1 soil was degraded by strain PU after 7 days.
Similarly, 63.31% and 57.14% of malaoxon in sterile
and nonsterile soil respectively, from malathionconcentration of 1.5% kg-1 soil was degraded by strain KB2 after 7 days. Bioremediation of malathion in soil using strain KB1 have already discussed in the previous study
(Singh et al., 2012). Regardless of
soil sterilization, incorporation of bacterial strain in malathion containing
soil resulted in higher level of degradation of malathion. Bioremediation of
malathion in soil was maximum for mixed culture of all three strains.
Cite this paper
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