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Blue to bluish-purple color extraction from fruits such as dogwood, mulberries, elderberries, and blueberries involves isolating natural anthocyanin pigments responsible for their vibrant hues. The process begins with harvesting ripe fruits, followed by cleaning and crushing to prepare them for extraction. Extraction is typically carried out using acidified aqueous solvents (like water with citric or hydrochloric acid) to stabilize anthocyanins and enhance color retention. Techniques such as cold maceration, ultrasound-assisted extraction (UAE), or microwave-assisted extraction (MAE) can be employed to improve pigment yield and reduce processing time. After extraction, the solution is filtered and concentrated under controlled low-temperature conditions to preserve the delicate pigments. The resulting extract is widely used in natural food colorants, cosmetics, and nutraceutical products. Maintaining optimal pH, temperature, and light exposure is essential to prevent pigment degradation and maintain the vibrant blue-purple color.

Herbal / Solvent Extraction Plants

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Herbal / Solvent Extraction Plants

Blue to Bluish-Purple Color Extraction from Fruits – Dogwood, Mulberries, Elderberries, and Blueberries

Herbal / Solvent Extraction Plants

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