Curcuma longa extract as a histological dye for collagen fibres and red blood cells

Crude ethanolic extract and column chromatographic fractions of the Allepey cultivar of Curcuma longa Roxb, commonly called turmeric (tumeric) in commerce, were used as a stain for tissue sections. Staining was carried out under basic, acidic and neutral media conditions. Inorganic and organic disso...

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Veröffentlicht in:Journal of anatomy 2007-05, Vol.210 (5), p.600-603
Hauptverfasser: Avwioro, O. G., Onwuka, S. K., Moody, J. O., Agbedahunsi, J. M., Oduola, T., Ekpo, O. E., Oladele, A. A.
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Sprache:eng
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Zusammenfassung:Crude ethanolic extract and column chromatographic fractions of the Allepey cultivar of Curcuma longa Roxb, commonly called turmeric (tumeric) in commerce, were used as a stain for tissue sections. Staining was carried out under basic, acidic and neutral media conditions. Inorganic and organic dissolution solvents were used. The stain was used as a counterstain after alum and iron haematoxylins. C. longa stained collagen fibres, cytoplasm, red blood cells and muscle cells yellow. It also stained in a fashion similar to eosin, except for its intense yellow colour. Preliminary phytochemical evaluation of the active column fraction revealed that it contained flavonoids, free anthraquinone and deoxy sugar. A cheap, natural dye can thus be obtained from C. longa.
ISSN:0021-8782
1469-7580
DOI:10.1111/j.1469-7580.2007.00721.x