Table 2.
Sequences of the five synthetized bioactive peptides with the corresponding observed [MH]+, m/z values and retention times (Rt) for the standard peptides and for the asparagus by-product sample. The difference between the standard peptide and the asparagus by-product peptides is also reported.
| Amino Acid Sequence | [MH] + (Da) | Standard | Asparagus Extracts | Difference | |||
|---|---|---|---|---|---|---|---|
| m/z | Rt (min) | m/z | Rt (min) | Δm/z (ppm) | ΔRt (min) | ||
| PDWFLLL | 903.4921 | 452.2456 | 62.02 | 452.2461 | 60.96 | 1.5 | 1.06 |
| FAPVPFDF | 939.4553 | 470.2268 | 55.31 | 470.2277 | 55.83 | 1.3 | −0.52 |
| MLLFPM | 751.3954 | 376.1991 | 44.71 | 376.1977 | 43.86 | −1.4 | 0.85 |
| FIARNFLLGW | 1236.7000 | 618.8509 | 45.92 | 618.8500 | 45.05 | 1.9 | 0.87 |
| ASQSIWLPGWL | 1257.6615 | 629.3303 | 36.24 | 629.3308 | 36.61 | 1.2 | −0.37 |