Extraction techniques are methods used to separate a desired substance from a mixture or compound. These techniques are commonly employed in various fields, including chemistry, biology, and food science. Common methods include solvent extraction, distillation, and filtration, each chosen based on the properties of the substances involved. In the context of natural products, extraction techniques help isolate compounds like essential oils or active ingredients from plants. The choice of technique can affect the purity and yield of the extracted substance, making it crucial to select the appropriate method for specific applications.