A hydrophobic deep eutectic solvents-based integrated method for efficient and green extraction and recovery of natural products from Rosmarinus officinalis leaves, Ginkgo biloba leaves and Salvia miltiorrhiza roots

Green extraction and separation of natural products is crucial for food industry, and has been widely concerned. Compared with hydrophilic natural products, the green extraction and separation of hydrophobic natural products is more challenging. In this work, a novel method which coupled the ultrasound-assisted extraction with high-speed countercurrent chromatography (HSCCC) separation based on hydrophobic deep eutectic solvent (DES) was...