What You Need to Know
Rotary evaporation lowers the effective boiling point of solvents by reducing pressure to 0.1–0.5 bar, allowing solvent removal at 30–60 °C. The rotation creates a thin film, increasing surface area and enhancing mass transfer, while the condenser recycles solvent vapor. This process concentrates non‑volatile flavor, aroma, and color compounds while maintaining the integrity of proteins, polysaccharides, and volatile aroma molecules.
The Science
Primary Reaction
Vaporization of volatile solvents under reduced pressure