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This work was conducted to study the extraction of pelletierine sulphate from Punica granatum L. roots by liquid membrane techniques. Pelletierine sulphate is used widely in medicine.Assuming the existence of two thin reaction layers in the feed and stripping solutions, mathematical model was developed to describe the pelletierine transport. On the basic of the experimental data obtained under various conditions and the model proposed, it was found that the solute transfer into the Liquid Membrane is mainly diffusion-controlled.