Blue to Bluish Purple Color Extraction from Hyacinth & Cornflower Flowers

Blue to bluish-purple color extraction from hyacinth (Hyacinthus orientalis) and cornflower (Centaurea cyanus) flowers involves isolating natural pigments such as anthocyanins and flavonoids responsible for their vibrant hues. The process starts with harvesting fresh flowers, followed by careful cleaning and drying to preserve pigment quality. The dried flowers are ground into fine powder to increase extraction efficiency. Extraction is typically performed using acidified aqueous solvents commonly water acidified with citric or hydrochloric acid to stabilize the delicate anthocyanin pigments and enhance color retention. Advanced extraction techniques like ultrasound-assisted extraction (UAE) or microwave-assisted extraction (MAE) can improve yield and reduce processing time. After extraction, the solution is filtered and concentrated under controlled low temperatures to maintain pigment stability. The resulting blue to bluish-purple extracts are widely used in natural cosmetics, food colorants, and textile dyes. Proper control of pH, temperature, and light exposure is essential to prevent pigment degradation and preserve vibrant coloration.