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vol.54 issue4AN EMPIRICAL WAY TO CORRECT SOME DRAWBACKS OF MULLIKEN POPULATION ANALYSISTHREE NEW TETRAALKYLAMMONIUM BROMOCHROMATES, NR4 [CRO3BR], (R= ET, HEX, HEP): MILD AND EFFICIENT REAGENTS FOR OXIDATION OF PRIMARY AND SECONDARY ALCOHOLS author indexsubject indexarticles search
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Journal of the Chilean Chemical Society

On-line version ISSN 0717-9707

Abstract

UD-DIN, AYESHA MOHY et al. CHEMOTAXONOMIC SIGNIFICANCE OF FLAVONOIDS IN THE SOLANUM NIGRUM COMPLEX. J. Chil. Chem. Soc. [online]. 2009, vol.54, n.4, pp.486-490. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072009000400037.

Five locally available plant taxa of Solanum nigrum Complex were investigated to resolve the International taxonomic controversy about these plants by analyzing their favonoid profles. Total favonoid contents in the taxa were determined by two complementary colorimetric methods, aluminum chloride method and 2,4-dinitrophenylhydrazine method. Thin layer chromatography was used to detect the glycosides of quercetin. Whereas GC-MS analysis of the hydrolyzed extracts showed the relative percentage of quercetin aglycon in the taxa under study. Statistical analyses of the results were employed for grouping of these taxa into various clusters. The signifcant distance found between S. americanum, S. chenopodioides, S. nigrum and S. villosum indicated them as distinct species. But S. retrofexum did not show such a marked difference and hence might be regarded as a variety or subspecies of S. nigrum.

Keywords : Solanum nigrum Complex; Flavonoids; Chemotaxonomy.

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