Time (h)
Bacterial growth in
Pseudomonas
Broth
Bacterial growth in 4X phenolics + salts
Bacterial growth in 4X catechol + salts
Bacterial growth in 4X m-cresol + salts
Bacterial growth in salts alone
O.D550*
O.D550*
O.D550*
O.D550*
O.D550*
0
0.31 ± 0.06
0.30 ± 0.05
0.30 ± 0.05
0.29 ± 0.05
0.27 ± 0.01
24
1.10 ± 0.21
0.50 ± 0.03
0.59 ± 0.03
0.50 ± 0.02
0.27 ± 0.02
48
1.65 ± 0.35
1.00 ± 0.29
1.20 ± 0.23
0.90 ± 0.07
0.25 ± 0.01
72
1.40 ± 0.28
0.85 ± 0.34
1.00 ± 0.29
0.61 ± 0.02
0.24 ± 0.03
*O.D. values are given as the statistical mean of the three independent experiments carried out using triplicate tubes
Table 8:
Utilization effi ciency of the test phenolics namely catechol and m-cresol as a carbon source by SM1 strain.
