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Brown color extraction from yellow dock roots (Rumex crispus) involves isolating natural pigments such as anthraquinones, tannins, and polyphenolic compounds that yield warm brown to reddish-brown hues. The process begins with harvesting, cleaning, and drying the roots, which are then ground into a fine powder to enhance extraction efficiency. Extraction is typically carried out using solvents like ethanol, methanol, or hot water under controlled temperature and pH conditions to maximize pigment yield and stability. Techniques such as ultrasound-assisted extraction can be employed to improve efficiency and reduce extraction time. The extract is filtered and concentrated to produce a natural brown dye suitable for use in textiles, cosmetics, and natural ink production. Careful control of extraction parameters ensures vibrant color retention and prevents pigment degradation.

Herbal / Solvent Extraction Plants

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Herbal / Solvent Extraction Plants

Brown Color Extraction from Yellow Dock Roots

Herbal / Solvent Extraction Plants

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