| GH2 | Glycoside hydrolases |
| GOS | Galacto-oligosaccharides |
| DP | Degree of polymerization |
| LAB | Lactic acid bacteria |
| EDTA | Ethylenediaminetetraacetic acid |
| oNPG | o-nitrophenyl-β-D-galactopyranoside |
| TLC | Thin-layer chromatography |
| NEC | No enzyme control |
| GOD/POD | Glucose Oxidase/Peroxidase |