Research Article

Antiobesity Effects of Unripe Rubus coreanus Miquel and Its Constituents: An In Vitro and In Vivo Characterization of the Underlying Mechanism

Figure 1

Fractionation procedures for uRC are summarized by a diagrammatic scheme. uRC (30 g) was suspended in water and divided successively with hexane, CHCl3, EtOAc, and BuOH. The dried BuOH fraction was eluted on a silica gel column (5 × 40 cm; Merck, 63–200 μm particle size) with a solvent gradient of CHCl3 : MeOH (5 : 1 to 0 : 1 ratios) to yield six fractions (Fr.1–Fr.6). Fr.6 was analyzed as six bioactive compounds (S1–S6) using LC-ESI-MS/MS.