Weld

Indicative colour

 yellow

Products available in catalog

Plant extract (ref C08) – Plant pigment (ref P09)

Scientific name: Reseda luteola L.
French name: Réséda jaune or gaude
English name: Weld, Dyer’s mignonette
Old names: Lutum or Reseda (romans), Yellow Herb, Réséda des teinturiers, Herba licia, Lutea, Arzica, Gualda, Luteum, Litea, erbo dei Judiéou (Jewish herbs)
Medival names: Walda (germanique) Lutea, luteola, herba lutea, gaudum, gauda
Botanical origin: Mediterranean Basin and Persia
Crop production: Poitou-Charentes – France
Parts of plant used: Flowering stems

Nomenclature

N° CAS: [90106-16-4]
N° EINECS/ EC: 290-237-8
INCI name: Reseda luteola Flower/leaf/stem extract
CI: 75590 Natural Yellow 2 (luteolin)

Documents available

• Analysis report
• Technical specifications
• Material Safety Data Sheet
• Raw material information data sheet

Historical importance

One of the most famous yellow dye plants in Europe. This species is rich in luteolin, yellow dye molecule. Its name is derived from the Latin resedare, calm down. This plant has probably been used since prehistoric times and is mentioned in antiquity (texts of Dioscoride, Pline, and Vitruve). Its use is attested since the 13th century. (Probably used in antiquity) and was grown to the late 19th century, throughout Europe: England, Belgium, Germany, Languedoc and Normandy.

Phytochemistry

The main colouring molecule is luteolin, a flavone present in the plant as the aglycone or in glycosidic form. It may contain small amounts of apigenin.

Crop production – Manufacturing

We cultivate Weld in Poitou-Charentes (France). It is an annual or biennial plant of the Resedaceae family whose flowering stems are used.
We carry out the production of plant extract and pigment in France.