Described the method for the extraction of alkaloids from plant sources. alkaloid.
Process
① For the extraction of alkaloids, the plant material is macerated.
② If the material is rich in fat, it is first extracted with light petroleum ether for the removal of the fats. The petroleum ether is then removed.
③ The plant residue is then extracted with methanol and the cellulosic material separated by filtration.
④ The filtrate is evaporated to yield the crude plant extract.
⑤ This extract is then dissolved in dilute acid and extracted with ether.
⑥ The acid solution of the alkaloid salts is basified (with NaOH) and extracted with ether.
⑦ Evaporation of the ether solution yields a solid mixture of crude alkaloids.
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