Compared to the reflux extraction method (90 C, 1 L solvent, 60 min), the PLE method showed more than twice the extraction efficiency on the extraction yields, TP, TF and the antioxidative activity of the crude extract, using seventy-six times less extraction solvent (13 mL instead of 1000 mL) in 2.4 times less time (25 min instead of 60 min)