| Acronym | Meaning |
| APNO | Atomic Pair Natural Orbital |
| RUDAD | RUmen-Derived Anaerobic Digester |
| HEDTA | Hydroxyethylethylenediaminetriacetic Acid |
| DWA | Distorted Wave Approximation |
| DSC | Differential Scanning Calorimetry |
| PZC | Potential Of Zero Charge |
| SPFS | Surface Plasmon Fluorescence Spectroscopy |
| ISAAC | International Study Of Asthma And Allergies In Childhood |
| PLFA | Phospholipid Fatty Acid |
| VLE | Vapor-liquid Equilibrium |