Application of natural dye extract from the bark of a plant Rhizophora recemosa

E. Osabohien* and J.O. Otutu

Department of Chemistry, Delta State University, Abraka (Nigeria).

ABSTRACT:

The bark of the plant Rhizophora recemosa was collected, chopped, dried, pulverized and the dye content was extracted using water and ethanol absolute as solvents. The percentage yields of the dyestuffs, melting point, Rf value and Uv/visible absorptions of the dye extract were determined. The dyestuff got was used to colour petroleum jelly, food (pap) and drink (illicit gin). The dye bath prepared with the dye was also used to dye some textile fabrics, mordanted and unmordanted types. The final products from these dyeings showed varied colour shades and hues. Their wash and light fastness properties did improve with mordanting.

KEYWORDS:

Natural dyestuffs; Rhizophora recemosa; solvent extraction; fabric dyeings and substrates colouring

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Copy the following to cite this article: Osabohien E, Otutu J. O. Application of natural dye extract from the bark of a plant Rhizophora recemosa. Orient J Chem 2009;25(3).

Copy the following to cite this URL: Osabohien E, Otutu J. O. Application of natural dye extract from the bark of a plant Rhizophora recemosa. Available from: http://www.orientjchem.org/?p=11425