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. 2013 Sep 16;2(3):167-80.
doi: 10.3390/antiox2030167.

Lipophilic Constituents of Rumex vesicarius L. and Rumex dentatus L

Mona A Abou Elfotoh  1 , Khaled A Shams  2 , Kevin P Anthony  3 , Abdelaaty A Shahat  4 , Magda T Ibrahim  5 , Nevein M Abdelhady  6 , Nahla S Abdel Azim  7 , Faiza M Hammouda  8 , Mostafa M El-Missiry  9 , Mahmoud A Saleh  10
Affiliations

Lipophilic Constituents of Rumex vesicarius L. and Rumex dentatus L

Mona A Abou Elfotoh et al. Antioxidants (Basel). .

Abstract

Rumex dentatus L. and Rumex vesicarius L., of the family Polygonaceae, are edible herbs growing wild in Egypt. Their lipoid constituents were examined by both liquid chromatography/mass spectrometry (LC/MS) and by gas chromatography/mass spectrometry (GC/MS). Their essential oil compositions consisted mainly of thujene, limonene, fenchon, estragole, and anethole but at largely different concentration. Fatty acid compositions were similar among the two species and consisting of palmitic, oleic, linoleic and linolenic acids, with R. vesicarius containing much higher level of omega-3-fatty acids. Both of the crude lipid extracts of the two species showed strong antioxidant activity as a radical quenching agent against 2,2-diphenyl-1-picrylhydrazyl (DPPH) systems. Antioxidant activities were mostly associated with the polar lipid fractions. High performance thin layer chromatography (HPTLC), both in the normal and reversed phase,as well as liquid chromatography/mass spectrometry (LC/MS) in the positive and negative electrospray ionization (ESI), showed unique chemical profile for each species that can be useful for species identification and quality control of herbal drug formulations. R. vesicarius was characterized by abundances of flavonoids and R. dentatus was abundant in anthraquinones and chromones.

Keywords: Egypt; antioxidants; flavonoids; omega fatty acids; quinones.

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Figures

Figure 1
Figure 1
Percolator extractors used for solvent extraction of plant materials.
Figure 2
Figure 2
Total ion chromatograms (GC/MS) of the essential oil of Rumex dentatus and Rumex vesicarius. Compounds identification is shown in Table 1.
Figure 3
Figure 3
Total ion chromatograms (GC/MS) of fatty acid methyl esters of Rumex.
Figure 4
Figure 4
HPTLC profiles of Rumex dentatus (1) and Rumex vesicarius (2).
Figure 5
Figure 5
Ultra violet/visible absorption spectra LC chromatograms of Rumex dentatus and Rumex vesicarius.
Figure 6
Figure 6
ESILCMS chromatograms of Rumex dentatus and Rumex vesicarius.
Figure 7
Figure 7
Chemical markers of Rumex dentatus.
Figure 8
Figure 8
Chemical markers of Rumex vesicarius.
See this image and copyright information in PMC

References

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