Selective Recovery of Tropane Alkaloids Applying Liquid Membrane Technique

K. Dimitrov, D. Metcheva, S. Alexandrova and L. Boyadzhiev

Abstract
Atropine recovery from its solutions applying a liquid membrane technique was studied. Among several studied organic solvents, chloroform showed best extraction ability towards atropine. Pertraction studies were carried out in a laboratory bulk liquid membrane contactor with agitation of all three phases. Both, aqueous solutions of pure atropine and extract of Atropa Belladonna L. roots were used as feed solutions, as well as chloroform and diluted sulphuric acid as a liquid membrane and a stripping liquor, respectively. The effect of phase agitation on alkaloid pertraction was studied for the cases when pure atropine solutions were used as feed phase. A pertraction process carried out with native liquid extracts from A. Belladonna provided selective alkaloid recovery and its concentration in the acceptor solution.

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Keywords
Liquid membranes, atropine, pertraction, tropane alkaloids, purification