Which statement best describes extraction in herbal processing?

• A. The withdrawal of desired compounds from plant material by the use of a solvent in which the compounds are soluble.
• B. Maceration is the extraction method involving slow passage through a column.
• C. Tinctures cannot be mixed with any liquids.
• D. Ether is a safe cosolvent in oral elixirs.

Answer: (A)

Extraction in herbal processing means pulling out the desired constituents from plant material by using a solvent in which those constituents dissolve. This definition captures the essence: you choose a solvent that can dissolve the active compounds you want while leaving behind as much of the plant matrix as possible. The statement describing extraction this way is the best fit because it directly ties plant material, solubility, and the role of the solvent together.

The other statements don’t describe extraction accurately. Maceration is typically soaking plant material in a solvent to release compounds, not a slow passage through a column. Tinctures are alcoholic extracts and can be diluted or mixed with liquids under appropriate guidance, so claiming they cannot be mixed isn’t correct. Ether is not considered a safe cosolvent for oral elixirs due to safety and toxicity concerns.