Removal of Triphenylmethane Dyes by Bacterial Consortium
Table 3
Response of triphenylmethane dyes before and after treatment by a new bacterial consortium CM-4 in Salmonella typhimurium (TA98 and TA100) without metabolic activation.
S. typhimurium strains
TA98
TA100
MR for TA98
MR for TA100
Mean revertants per platea
SR
Samples untreated
CV1
1.2
1.4
CV2
1.4
1.5
MG1
0.6
1.0
MG2
1.0
1.2
Samples treated by CM-4
CV1
1.1
1.0
CV2
0.8
1.0
MG1
0.8
1.2
MG2
0.5
0.9
CV, crystal violet; MG, malachite green; S., Salmonella; SR, spontaneous revertants; 1, 500 μg per plate; 2, 250 μg per plate; avalues obtained from duplicate plates; MR, mutagenic ratio.