extraction

Extraction is a process used to separate a specific substance from a mixture, often involving dissolving the target substance in a liquid where it selectively dissolves, while other components do not. This technique is common in laboratories and industries—for example, removing caffeine from coffee beans or isolating oils from plants. The mixture is treated so the desired material moves into a different phase (like liquid), which can then be separated and purified. Extraction helps obtain pure substances for use in research, medicine, food production, and other applications efficiently and effectively.