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Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
A solvent‑free method that uses supercritical CO₂ to extract aromatic compounds from plant materials.
Origin: Modern industrial food and fragrance sector (21st century) — Global
See full technique reference →Supercritical CO₂ behaves as a tunable solvent, with density and solubility adjustable by pressure and temperature. At temperatures above 31.1 °C and pressures above 73.8 bar, CO₂ enters a supercritical phase that dissolves non‑polar aromatics while remaining chemically inert. The extracted compounds are recovered by depressurizing the CO₂, leaving a solvent‑free aromatic extract.
Primary Reaction
Physical dissolution and phase separation
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