Carbon substrate
|
Surfactin groups (mg L−1)
|
Total surfactin mg L−1 culture
|
---|
Srf1
|
Srf2
|
Srf3
|
Srf4
|
---|
Diesel
|
0.8 ± 0.2
|
1.4 ± 0.3
|
1.5 ± 0.4
|
2.3 ± 0.7
|
6.0 ± 1.6
|
Kerosene
|
0.3 ± 0.1
|
0.9 ± 0.5
|
1.0 ± 0.6
|
1.8 ± 1.2
|
4.1 ± 2.3
|
Sunflower oil
|
0.3 ± 0.04
|
0.7 ± 0.3
|
0.9 ± 0.5
|
1.4 ± 1.0
|
3.3 ± 1.9
|
Fructose
|
1.1 ± 0.7
|
4.4 ± 3.0
|
11.2 ± 8.6
|
11 ± 3.9
|
28 ± 16
|
Glucose
|
0.4 ± 0.1
|
0.7 ± 0.3
|
1.5 ± 0.9
|
1.2 ± 0.6
|
3.7 ± 1.9
|
Glycerol
|
0.4 ± 0.1
|
1.1 ± 0.3
|
1.2 ± 0.4
|
1.6 ± 0.4
|
4.3 ± 1.2
|
Sucrose
|
0.5 ± 0.1
|
1.3 ± 0.1
|
3.4 ± 0.9
|
2.3 ± 1.0
|
7.6 ± 2.0
|
Surfactin standard
|
215.09
|
400.82
|
318.45
|
58.74
|
1000a
|
- Each value represents the average of three culture extracts with standard error of the mean (SEM)
-
aTotal concentration of standard surfactin include concentration of the other surfactin variants observed at 6.9 mg L−1