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Table 1 Assignment of the structures of lipopeptides by LC–ESI–MS/MS in this study

From: Identification of lipopeptides in Bacillus megaterium by two-step ultrafiltration and LC–ESI–MS/MS

Peak Mass (M/S) Rt (min) Family Assignment Sequence
1 994 6.50 Surfactin C12[M + H]+
2 1008 6.98 C13[M + H]+
3 1022 8.05 C14[M + H]+
4 1036 9.12 C15[M + H]+
5 1050 9.38 C16[M + H]+
6 994 6.38 C12[M + H]+
7 1008 6.94 C13[M + H]+
8 1022 8.17 C14[M + H]+
9 1036 8.63 C15[M + H]+
10 1050 9.63 C16[M + H]+
11 994 6.42 C12[M + H]+
12 1008 6.89 C13[M + H]+
13 1022 8.11 C14[M + H]+
14 1036 8.69 C15[M + H]+
16 1008 8.40 C14[M + H]+
17 1022 9.35 C15[M + H]+
18 1008 8.46 C14[M + H]+
19 1022 9.22 C15[M + H]+
20 1008 8.40 Surfactin C14[M + H]+
21 1022 9.16 C15[M + H]+
22 1008 6.89 C12[M + H]+
23 1050 4.68 Esperin C16[M + H]+
24 1050 5.12 C16[M + H]+
25 1012 4.81 Surfactin Linear C12[M + H]+
26 1026 5.26 Linear C13[M + H]+
27 1040 5.87 Linear C14[M + H]+
28 1054 6.39 Linear C15[M + H]+
29 1068 7.17 Linear C16[M + H]+
30 1026 5.53 Surfactin Linear C14[M + H]+
31 1031 6.98 Bacillomycin D C14[M + H]+
32 1045 7.95 C15[M + H]+
33 1451 10.94 Fengycin A C15[M + H]+
34 1465 10.82 C16[M + H]+
35 1479 12.63 C17[M + H]+
36 740 12.69 C17[M + 2H]2+
37 1493 13.01 C18[M + H]+
38 747 15.09 C18[M + 2H]2+
39 1479 12.71 Fengycin B C15[M + H]+
40 740 12.61 C15[M + 2H]2+
41 1493 12.92 C16[M + H]+
42 747 13.15 C16[M + 2H]2+
43 1467 8.66 Fengycin A Linear C15[M + H]+
44 1481 8.83 Linear C16[M + H]+
45 1495 12.36 Linear C17[M + H]+
46 1495 12.36 Fengycin B Linear C15[M + H]+
47 1509 13.87 Linear C16[M + H]+