Research Article
Characterization and Synergistic Antimicrobial Evaluation of Lipopeptides from Bacillus amyloliquefaciens Isolated from Oil-Contaminated Soil
Table 1
Peak numbers, retention times, mass ion peaks, and assignment of the fatty acid moiety of surfactin.
| Peak number | UPLC retention time (min) | Mass peak (m/z) | Assignment | [M + H]+ | [M + Na]+ |
| 11 | 5.84 | 994.62 | | C12-surfactin | 12; 13; 15 | 5.96; 6.10; 6.23 | 1008.65 | 1031.54 | C13-surfactin | 12; 16 | 6.10; 6.34 | 1022.67 | 1045.60 | C14-surfactin | 11; 2; 4; 5; 6; 7; 8; 9; 10; 15 | 4.15; 4.24; 4.61; 4.76; 4.97; 5.25; 5.47; 5.61; 5.73; 6.23 | 1036.69 | 1059.63 | C15-surfactin | 1; 16 | 4.15; 6.34 | 1050.71 | 1073.69 | C16-surfactin |
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