Determination of tropane alkaloids atropine and scopolamine by liquid chromatography-mass spectrometry in plant organs of Datura species.

Summary of "Determination of tropane alkaloids atropine and scopolamine by liquid chromatography-mass spectrometry in plant organs of Datura species."

Hyoscyamine (atropine) and scopolamine are the predominant tropane alkaloids in the Datura genus, occurring in all plant organs. The assessment of the alkaloid content of various plant parts is essential from the viewpoint of medical use, but also as a potential risk of toxicity for humans and animals. Therefore, a reliable method for the determination of tropane alkaloid content is of high importance. The present work aimed at the elaboration of a rapid method for determination of the most abundant Datura alkaloids by LC-MS technique using a new generation of core-shell particle packed column. Tropane alkaloid content was investigated in various plant organs of four Datura taxa (D. innoxia, D. metel, D. stramonium, and D. stramonium var. tatula), grown under the same conditions, in two developmental stages. We have developed a rapid LC-MS method for the quantitative determination of atropine and scopolamine, which was successfully applied to quantify the alkaloids in different plant organs (leaves, flowers, stems, seeds) of thorn apples after a simple sample preparation step. Elaboration and validation of the method and analysis of plant extracts were done by UFLC-MS technique, employing an Ascentis Express C18 column. Detection was done in positive ionization mode (ESI+) and the method suitability was evaluated by several validation characteristics. Quantitation limits are 333 and 167pgmL(-1) for scopolamine and atropine, respectively, and the method shows very good repeatability. The analysis of Datura extracts revealed significant differences depending on the species, the organ and the sampling period. Atropine was found to be dominant over scopolamine in three out of the four taxa investigated. D. innoxia showed the highest concentrations of scopolamine in all organs examined, whereas D. metel accumulated the lowest scopolamine levels. Hyoscyamine, measured as atropine, was the highest in D. stramonium var. tatula, and the lowest in D. innoxia. Samples collected in summer had higher scopolamine levels than autumn samples, concerning both stems and leaves.


Department of Analytical and Environmental Chemistry, Faculty of Science, University of Pécs, Ifjúság útja 6, H-7624 Pécs, Hungary; Department of Chemistry, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Tr.A. Hlinku 1,

Journal Details

This article was published in the following journal.

Name: Journal of chromatography. A
ISSN: 1873-3778
Pages: 295-301


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Medical and Biotech [MESH] Definitions

Alkaloids obtained from various plants, especially the deadly nightshade (Atropa belladonna), variety acuminata; atropine, hyoscyamine and scopolamine are classical, specific antimuscarinic agents with many pharmacologic actions; used mainly as antispasmodics.

A plant species of the genus ATROPA, family SOLANACEAE that contains ATROPINE; SCOPOLAMINE; BELLADONNA ALKALOIDS and other SOLANACEOUS ALKALOIDS. Some species in this genus are called deadly nightshade which is also a common name for SOLANUM.

A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.

An alkaloid from SOLANACEAE, especially DATURA and SCOPOLIA. Scopolamine and its quaternary derivatives act as antimuscarinics like ATROPINE, but may have more central nervous system effects. Among the many uses are as an anesthetic premedication, in URINARY INCONTINENCE, in MOTION SICKNESS, as an antispasmodic, and as a mydriatic and cycloplegic.

A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.

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