The water-soluble portion (650 g) was chromatographed on D101 macroporous resin, eluted with a gradient of EtOH-H2O (0:100 to 95:5), to obtain five fractions (Fr.1–Fr.5). Fr.2 (250 g, 20% EtOH elute) was subjected to MPLC on an ODS column (30 mL/min, 265 nm) eluted with a gradient of MeOH-H2O (5:95 to 100:0) to yield seven fractions (Fr.2.1–Fr.2.7).