Menthol-Based Hydrophobic Deep Eutectic Solvent for Vortex-Assisted Liquid-Liquid Microextraction and Capillary Electrophoretic Determination of Bioactive Compounds in Licorice

Key Points

• To develop a novel hydrophobic deep eutectic solvent for extracting bioactive compounds from licorice.
• Synthesis of a hydrophobic deep eutectic solvent composed of menthol and lactic acid.
• Application of vortex-assisted liquid-liquid microextraction for extraction.
• Capillary electrophoresis used for determination of triterpenoids.
• Efficient extraction of triterpenoids from licorice is achieved.
• Hydrophobic deep eutectic solvent enhances the extraction process.
• Capillary electrophoretic determination provides reliable results for bioactive compounds.