The Determination of Colour Intensity ofRubia TinctorumandChrozophora TinctoriaDistributed in Western Anatolia

Abstract

The aim of this study is to determinate the colour intensity of Rubia tinctorum L., Rubiaceae (dyer's madder) and Chrozophora tinctoria (L.) A. Juss., Euphorbiaceae (dyer's croton). Rubia tinctorum and Chorozophora tinctoria distributed widely in our study area of West Anatolia were used as the research materials in our study because of their dye value. Aboveground parts of C. tinctoria and underground parts of R. tinctorum were collected from different localities in Western Anatolia for determining their colour intensity on wool. After a few procedures, the colour intensity of specimens was determined by DC 3881 Datacolor spectrophotometer and evaluation made by Kubelka-Munk equality. According to the results of the measurements; the highest and the lowest colour intensity of R. tinctorum were as 28.07 and 11.01, respectively, and the same values for C. tinctoria were 6.40 and 3.21, respectively.