“…Compared with other extraction methods, maceration is easy to perform, has simple equipment, and widely meets the extraction needs of different herbs without destroying the internal structure of secondary metabolites in the plant. 31 Chuah et al extracted Clinacanthus nutans leaves by maceration, Soxhlet extraction and magnetic stirring methods, in which the extracts obtained by the maceration method retained the antioxidant activity of Clinacanthus nutans leaves to a greater extent. 32 Based on the high solubility, low boiling point and low cost of MeOH, MeOH was chosen as the solvent for the present extraction.…”