| LAB | Lactic acid bacteria |
| RSM | Response surface methodology |
| PBD | Plackett-Burman Design |
| CCD | Central Composite Design |
| PLP | Pyridoxal phosphate |
| MRS | deMan, Rogosa and Sharpe |
| SEM | Standard error of mean |
| HPLC | High performance liquid chromatography |
| OPA | o-phthalaldehyde |
| FMOC | 9-fluorenylmethyl chloroformate |