Table 1.
The value of different databases for lycopodium alkaloids identification.
| Name | KEGG | HMDB | LipidMAPS | T3DB | CCMD | MS-DIAL | in-house database |
|---|---|---|---|---|---|---|---|
| Huperzine A | No | No | No | No | No | No | Yes |
| Huperzine B | Yes | No | No | No | * | No | Yes |
| Caffeine (IS) | Yes | Yes | No | Yes | No | Yes | Yes |
| Lycoposerramine C | No | No | No | No | No | No | Yes |
| Lycoposerramine D | No | No | No | No | No | No | Yes |
No, means the metabolite was not identified by this database using m/z value and retention time.
Yes, means the metabolite could be identified by this database using m/z value and retention time; *, means that the metabolite could be identified by m/z value but not be identified by retention time.