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O 11 R- (CH2) - CHCH2-C -Glu - Leu I I
O 1
Leu
Leu - Leu - Asp - Val Where R = CH3- (CH2)3- , Normal- or CH3 CH - CH2 , Iso- or CH3! CH3- CH2 - CH - , Anteios- CH3 Figure 4 Proposed chemical structure of the biosurfactant produced by Bacillus licheniformis JF-2 based on NMR experiments and the structure of the peptide part of surfactin. The position of valine (Val) can not be unambiguously identified because of signal overlap in the ROESY spectrum.
Sharma, M. M. & Georgiou, G.Microbial enhanced oil recovery research. Annex 5, Summary annual report, 1991--1992,
report,
December 31, 1992;
Austin, Texas.
(https://digital.library.unt.edu/ark:/67531/metadc1314592/m1/13/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.