| ACE | Angiotensin converting enzyme |
| α-value | Significance level |
| BR | Backward regression |
| FR | Forward regression |
| F-test | Fisher–Snedecor test |
| IC50 | Concentration of peptide corresponding to its half-maximal inhibitory activity [µM] |
| MLR | Multiple regression |
| p-value | Probability of a given statistical model |
| R | Correlation coefficient |
| Rcaf. | Bitterness of peptide related to that of 1 mM caffeine solution |
| R2 | Determination coefficient |
| SW-W | Normality Shapiro–Wilk’s test |
| t-test | Student’s t test |