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Table 1 Chemical shift assignments of extracted RLs in 1H NMR spectrum produced by P. aeruginosa P6

From: Structural and Physicochemical Characterization of Rhamnolipids produced by Pseudomonas aeruginosa P6

Assignment

Chemical shift (ppm)

–CH3

0.89

–(CH2)n–

1.26

–CH2–COO–

2.4–2.6

–O–CH–

4.2

–COO–CH–

5.3

CH3 (ring)

1.23

4’,4’’-H

3.4

2’-,3’-,5’-H

2’’,3’’,5’’ H

3.6–3.7

1’,1’’ H

4.1

-CH2 = CH-

7.6–7.7

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