A green and integrated strategy for enhanced phenolic compounds extraction from mulberry (Morus alba L.) leaves by deep eutectic solvent

•A series of green and sustainable DESs have been successfully prepared.•The extraction of phenolic compounds was efficiently performed by DES-MAE.•DES-MAE process was optimized by response surface methodology.•The extraction kinetics of DES-MAE process was comprehensively investigated.•The recovered DES still exhibited a good solvent effect.