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Table 1 Composition of rhamnolipids RL7-11 produced by P. aeruginosa ZS1

From: A novel rhamnolipid-producing Pseudomonas aeruginosa ZS1 isolate derived from petroleum sludge suitable for bioremediation

No.

[M-H]− (m/z)

RL7-11 components

Molecular formula

Relative level (%)

Rank

1

447.3

Rha-C8-C8

C22H40O9

1.47

16

2

447.3

Rha-C10-C6

C22H40O9

2.78

9

3

475.3

Rha-C10-C8/Rha-C8-C10

C24H44O9

10.11

4

4

503.3

Rha-C10-C10

C26H48O9

17.74

2

5

529.3

Rha-C10-C12:1/Rha-C12:1-C10

C28H50O9

2.36

13

6

531.4

Rha-C10-C12/Rha-C12-C10

C28H52O9

4.72

6

7

557.4

Rha-C10-C14:1/Rha-C14:1-C10

C30H54O9

0.85

18

8

593.3

Rha-Rha-C8-C8

C28H50O13

1.79

15

9

621.4

Rha-Rha-C10-C8/Rha-Rha-C8-C10

C30H54O13

11.80

3

10

647.4

Rha-Rha-C10-C10:1

C32H56O13

1.80

14

11

647.4

Rha-Rha-C8-C12:1

C32H56O13

2.71

11

12

649.4

Rha-Rha-C10-C10

C32H58O13

19.66

1

13

675.4

Rha-Rha-C12:1-C10/Rha-Rha-C10-C12:1

C34H60O13

2.37

12

14

677.4

Rha-Rha-C12-C10/Rha-Rha-C10-C12

C34H62O13

8.28

5

15

703.4

Rha-Rha-C10-C14:1/Rha-Rha-C14:1-C10

C36H64O13

3.62

8

16.1

703.4

Rha-Rha-C12:1-C12

C36H64O13

0.94

17

16.2

703.4

Rha-Rha-C12-C12:1

C36H64O13

3.77

7

17

705.5

Rha-Rha-C12-C12

C36H66O13

2.72

10

18

731.5

Rha-Rha-C10-C16:1/Rha-Rha-C16:1-C10

C38H68O13

0.50

19