Section 3
Chapter 2,619

Extraction, spectroscopic and colouring potential studies of the dye in ginger rhizome (Zingiber officinale)

Popoola, A.V.; Ipinmoroti, K.O.; Adetuyi, A.O.; Ogunmoroti, T.O.

Pakistan Journal of Scientific and Industrial Research 37(5): 217-220


ISSN/ISBN: 0030-9885
Accession: 002618355

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The rhizome of ginger was finely ground and eluted with n-hexane to remove the oil, then eluted with methanol to remove the dye. The dye amounted to 13.96% of the rhizome, was a lustrous, brown colour, with a m.p. of 88-90 degrees C, and was soluble in hydroxyl organic solvents. Chromatographic separation in chloroform:acetone (9:1 v/v) revealed one component of Rf 0.86, and lambda max at 420 nm.

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