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Yellow color extraction from the inner bark or wood shavings of Osage orange (Maclura pomifera) focuses on isolating natural pigments, particularly morin, a yellow flavonoid with strong dyeing properties. The process begins with harvesting and cleaning the inner bark or heartwood, followed by drying and grinding into fine particles to increase the surface area for efficient extraction. Extraction is typically conducted using food-grade solvents like ethanol, methanol, or hot water, sometimes with mild alkaline conditions to enhance the release of color compounds. The mixture is then filtered, and the solvent is removed through evaporation to yield a concentrated yellow extract. Techniques like ultrasound-assisted extraction may be employed to improve efficiency and preserve pigment integrity. The resulting yellow dye is used in natural textile dyeing, wood staining, and potentially in cosmetic and artistic applications. Careful control of solvent type, temperature, and pH is critical to ensuring maximum pigment yield and color vibrancy.

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Herbal / Solvent Extraction Plants

Yellow Color Extraction from Osage Orange (Maclura pomifera) Inner Bark or Shavings

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