Extracting natural dyes from wool--an evaluation of extraction methods.

  title={Extracting natural dyes from wool--an evaluation of extraction methods.},
  author={Ana Cristina Cabaça Manhita and Teresa Ferreira and Ant{\'o}nio Candeias and Cristina Maria Barrocas Dias},
  journal={Analytical and bioanalytical chemistry},
  volume={400 5},
The efficiency of eight different procedures used for the extraction of natural dyes was evaluated using contemporary wool samples dyed with cochineal, madder, woad, weld, brazilwood and logwood. Comparison was made based on the LC-DAD peak areas of the natural dye's main components which had been extracted from the wool samples. Among the tested methods, an extraction procedure with Na(2)EDTA in water/DMF (1:1, v/v) proved to be the most suitable for the extraction of the studied dyes, which… CONTINUE READING


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