Anna Hartl
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View article: “Purplish Blue” or “Greenish Grey”? Indigo Qualities and Extraction Yields from Six Species
“Purplish Blue” or “Greenish Grey”? Indigo Qualities and Extraction Yields from Six Species Open
Indigo quality is determined by its indigotin content. Another quality indicator is colour. For an evaluation of species, indigo samples from Indigofera tinctoria, Indigofera suffruticosa, Indigofera arrecta, Persicaria tinctoria, Strobila…