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Field-emission Scanning Electron Microscope (FESEM) of the Labisia pumila leaves powder surface (a); before extraction (with 1000× magnification), (b) after maceration in 70% ethanol–water (with 1000× magnification), (c) after SC–CO2 extraction (pure CO2) (with 1000× magnification), (d) after SC–CO2 extraction using 70% ethanol–water as a co-solvent (with 500× magnification).
