Natural Dye constit-uents from rind of Punica granatum and its application on Pashmina fabrics

Abstract

The chloroform fraction of the aqueous extract of the rind of Punica granatum on its chemi-cal investigation afforded seven already reported compounds viz.1-O-Isopentyl-3-O-octadec-2-enoylglycerol (I), 1-O-trans,cis,trans-9,11,13-octadecatrienoyl glycerol (II), β-Sitosterol laurate (III), β-Sitosterol myristate (IV), Punicanolic Acid (V), Luteolin (VI) and Tricetin (VII). The structures of isolated compounds were ascertained using various spec-tral (IR, 1H, 13C NMR, MS) techniques. Compounds I, II, VI and VII were found to be couloured in nature and tested as dye substances on Cashmere (Pashmina) wool and showed promis-ing dyeing properties