Extraction of essential oils from tea tree (<i>Melaleuca alternifolia</i>) and lemon grass (<i>Cymbopogon citratus</i>) using betaine‐based deep eutectic solvent (DES)

Abstract

These results demonstrated the effective extraction of essential oils from plant leaves under milder conditions than those needed for the conventional methods. The environmentally benign DESs for the extraction would be applicable to the food and cosmetic industries.