M. Liakopouloukyriakides et al., DYEING OF COTTON AND WOOL FIBERS WITH PIGMENTS FROM CROCUS-SATIVUS - EFFECT OF ENZYMATIC TREATMENT, Dyes and pigments, 36(3), 1998, pp. 215-221
Natural pigments from Crocus sativus stigmas were used for the dyeing
of cotton and wool fibres after treatment with the enzymes alpha-amyla
se and trypsin, respectively, The separation of various compounds and
pigment constituents of the stigmas was effected by fractionation of t
he methanolic extract on a silica gel column, and the use of these fra
ctions for dyeing is described, The dyeing properties of the fractions
were compared with those of commercial trans-beta-carotene. Wash and
light fastness of the dyed samples after the enzymatic pretreatment we
re also studied. (C) 1997 Elsevier Science Ltd.