title: HPLC quantification of dye flavonoids in Reseda luteola L. from Portugal.
abstract: A HPLC method was developed for the simultaneous identification of Reseda luteola L. (weld) flavonoids and quantification of the main compounds responsible for the yellow color. This method was applied to a large number of wild Portuguese weld to evaluate its potential application as dyestuff for textile factories, as a substitute for the synthetic dyes currently used. Portuguese weld dyestuff content ranged between 1.04 and 5.87%, corresponding to a wide variation of the flavonoids amount (1.39-9.04%). Luteolin 4'-O-glucoside was found for the first time in R. luteola, but kaempferol, isorhamnetin, and their glycosides were not detected in the Portuguese specimens.
authors.affiliation: Instituto Nacional de Engenharia, Tecnologia e Inovação I.P., DTIQ, Lisboa, Portugal.
authors.forename: Cristina
authors.initials: C
authors.lastname: Moiteiro
authors.forename: Helena
authors.initials: H
authors.lastname: Gaspar
authors.forename: Ana I
authors.initials: AI
authors.lastname: Rodrigues
authors.forename: João F
authors.initials: JF
authors.lastname: Lopes
authors.forename: Valdemar
authors.initials: V
authors.lastname: Carnide
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004396:Coloring Agents / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000302:isolation & purification; D047311:Luteolin / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D011174:Portugal; D031951:Resedaceae / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D005419:Flavonoids; D005960:Glucosides; D010936:Plant Extracts; C120646:luteolin 4'-O-glucoside; D047311:Luteolin