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Fengycin homologs in NCD-2 based on the key product ions of β-OH-FA with different chain lengths
| Fengycin family | [M + 2H]2+ | β-hydroxy fatty acid |
|---|---|---|
| fengycin A | 718.4, 725.4, 732.4, 739.4, 745.4, 753.4 | C14-C19 |
| fengycin B | 718.4, 725.4, 732.4, 739.4, 746.4, 753.4, 760.4, 767.4 | C12-C19 |
| fengycin A2 | 718.4, 725.4, 732.4, 739.4 | C15-C18 |
| fengycin B2 | 725.4, 732.4, 739.4, 746.4, 753.4 | C14-C18 |
| fengycin C | 760.4, 767.4, 774.5 | C18-C20 |
