title: New trends in the separation of active principles from plants.
abstract: The extraction and separation of active principles of plant constituents is a difficult task, even for specialized chemists, when many similar substances are found in a single plant. In the case of the presence of alkaloids a separation method based on counter-current distribution with a discontinuous variation of pH can be used for the resolution of very complex mixtures. The alkaloids separated from twenty-seven medicinal plants are reported.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D010936:Plant Extracts; D010946:Plants, Medicinal
chemical_list: D000470:Alkaloids; D010936:Plant Extracts