Reddish-Purple Color Extraction from Dark Red Hibiscus & Day Lilies Flowers
Here’s a structured process for Reddish-Purple Color Extraction from Dark Red Hibiscus & Day Lilies Flowers, following a similar method to the Tulsi oil steam distillation plant:
Flower Cultivation
- Selection of Flowers: High-quality, deeply pigmented Dark Red Hibiscus and Day Lilies are cultivated for maximum color extraction.
- Optimal Growth Conditions: Ensuring the right soil, climate, and irrigation for maximum pigment concentration.
Harvesting
- Flowers are harvested at peak bloom when the anthocyanin (responsible for the reddish-purple color) is at its highest concentration.
Preparation for Extraction
- Cleaning: Flowers are cleaned to remove dust and impurities.
- Crushing & Maceration: The flowers are crushed or blended to release the natural pigments. Soaking in a mild acidic solution (like citric acid or vinegar) can enhance pigment extraction.
Extraction Process
- The crushed flower petals are boiled in distilled water at a controlled temperature (50-70°C) to extract the reddish-purple pigments.
- The solution is filtered to remove plant residues.
- Alcohol-based or organic solvents like ethanol or methanol can be used for better pigment stability.
- The mixture is agitated and left for maceration, then filtered to obtain the concentrated extract.
Filtration & Purification
- The extract is filtered through a fine mesh or centrifuged to remove any remaining flower particles.
- Adjustments in pH levels help in stabilizing the reddish-purple hue.
Concentration & Drying (Optional for Powder Form)
- The liquid extract can be concentrated through vacuum evaporation to reduce water content.
- Spray drying or freeze-drying converts the extract into powder form for longer shelf life.
Storage & Packaging
- The final color extract is stored in dark glass bottles or vacuum-sealed containers to protect it from oxidation.
- Powdered extract is packed in airtight containers with moisture absorbers to retain color stability.
Quality Control & Testing
- The extract is tested for color intensity, pH stability, and purity before commercial use.
- It can be used in food, cosmetics, and textiles depending on its purity and safety.
