Table 2.

Influence of initial concentration of quinalphos degradation by Bacillus thuringiensis under submerged culture conditions

Incubation period	Residual concentration of quinalphos in MSM
Day	20 ppm	50 ppm	100 ppm	200 ppm
0	20	50	100	200
2	3.37 ± 0.06a	4.54 ± 0.11a	5.50 ± 0.06a	6.12 ± 0.06a
4	2.30 ± 0.06b	3.22 ± 0.06b	3.00 ± 0.03b	4.75 ± 0.03b
6	2.04 ± 0.05c	2.37 ± 0.06c	2.76 ± 0.06c	3.68 ± 0.06c
8	0.77 ± 0.09d	1.56 ± 0.06d	1.55 ± 0.06d	2.13 ± 0.04d
10	0.53 ± 0.06e	1.07 ± 0.04e	1.25 ± 0.08e	1.64 ± 0.03e

Values labelled with the same letter (a, b, c, d, e) are not statistically significant at P < 0.05