Flowers - Dark Red Hibiscus / Day Lillis
Flowers - Dark Red Hibiscus / Day Lillis
Mechotech designs and manufactures turnkey natural colour extraction plants for dark red hibiscus and day lily flowers. In the Mechotech catalogue, Flowers - Dark Red Hibiscus / Day Lillis is listed in the Reddish Purple Colour group alongside Plant - Red Basil. The pigments are anthocyanins, which are water-soluble and strongly pH-responsive: the red-to-reddish-purple form is favoured under mildly acidic conditions, and the pigments are sensitive to heat, light and oxygen. Both an aqueous route and a solvent route can be used.
Mechotech’s Dark Red Hibiscus / Day Lily plant is configured around the raw material and the target colour extract. It is built in SS 316L with integrated solvent recovery, automation and full documentation, and is delivered as a commissioned turnkey system. Anthocyanins respond strongly to pH, so the extraction medium and acidity are set during process development to hold the reddish-purple shade. Final parameters are established during process development and pilot validation.
Technical Specifications
| Product | Flowers - Dark Red Hibiscus / Day Lillis Natural Colour Extraction Plant |
|---|---|
| Botanical Name | Hibiscus spp. (dark red hibiscus) and Hemerocallis spp. (day lily), as described in Mechotech’s colour-extraction article |
| Raw Material | dark red hibiscus and day lily flowers |
| Plant Part / Feed Form | Flowers (petals; fresh or dried form confirmed with the client) |
| Colour Group | Reddish Purple Colour |
| Pigment Class | Anthocyanins (water-soluble flavonoid pigments), with some carotenoids from day lily |
| Extract Type | Natural colour extract (liquid concentrate or dried powder, per specification) |
| Extraction Method | Closed jacketed SS 316L extraction with food-grade solvent (alcohol / aqueous), multiple cycles at controlled temperature |
| Product-contact Material | SS 316L |
| Filtration System | Plate-and-frame filter press with cartridge polish filters |
| Concentration System | Falling-film / vacuum evaporator with solvent recovery |
| Drying System | Spray or vacuum dryer |
| Automation | PLC-based |
| Plant Capacity | Configured to requirement |
| Utility Requirements | Steam, chilled/cooling water, compressed air and power (project-specific) |
| Compliance | GMP hygienic design; full documentation for qualification |
| Final Product Form | Natural colour extract (reddish purple colour group) |
Plant Capacities
| Plant Scale | Raw Material Throughput | Typical Use |
|---|---|---|
| Pilot | Configured to your feedstock and trial plan | Product development, parameter validation |
| Semi-Commercial | Configured between pilot and commercial scale | Scale-up trials, contract manufacturing |
| Commercial | Configured to raw-material supply and confirmed buyer volume | Commercial production |
Capacity is configured to raw-material supply, confirmed buyer volume and investment timeline; a pilot plant is recommended to validate parameters before scaling.
Manufacturing Process
Raw Material Preparation
Dark red hibiscus and day lily flowers, picked at peak bloom, are sorted and cleaned, then crushed or macerated to break the petal tissue; a mildly acidic medium can be used to hold the anthocyanins in their stable red-purple form.
Extraction
The prepared dark red hibiscus and day lily flowers is extracted with food-grade solvent (alcohol / aqueous) in closed jacketed SS 316L extractors at controlled temperature and over multiple cycles to recover the target colour compounds.
Filtration
The extract (miscella) is clarified through a plate-and-frame filter press followed by cartridge polish filters.
Concentration & Solvent Recovery
The miscella is concentrated in a falling-film / vacuum evaporator, with solvent recovered through the condenser return system so that heat exposure of the pigment stays low.
Standardisation
The concentrate is assayed for colour strength and adjusted to the declared target specification before the final finishing step.
Drying & Quality Control
The standardised Flowers - Dark Red Hibiscus / Day Lillis extract is spray- or vacuum-dried where a powder is required, then released after the agreed assay, residual-solvent, heavy-metal, microbial and moisture tests.
Major Plant Equipment
- Raw material cleaning and size-reduction system
- Closed jacketed SS 316L extraction vessels
- Solvent storage tanks
- Plate-and-frame filter press
- Cartridge polish filtration
- Falling-film / vacuum evaporator
- Solvent recovery unit and condensers
- Standardisation / blending vessel
- Spray or vacuum dryer
- CIP system
- Automation and instrumentation
Plant Output
Applications
- Natural colour and dye ingredient supply
- Food and beverage colour applications (subject to approval of the specific colour in each market)
- Cosmetic and personal-care colour applications
- Nutraceutical and Ayurvedic / herbal formulations
- Pharmaceutical standardised ingredient supply
Key Features
SS 316L Construction
Electropolished SS 316L product-contact surfaces with CIP operation between batches.
Closed-Loop Solvent Recovery
Integrated condenser-return recovery reuses solvent between batches and reduces solvent loss.
pH-Aware Extraction
Extraction and concentration are configured around the pH-sensitivity of anthocyanins, with mildly acidic conditions and gentle temperatures used to hold the reddish-purple form.
Standardised to Specification
In-process and batch-release assay are used to check the finished extract against its declared target specification.
Gentle Concentration
Vacuum concentration keeps heat exposure low for temperature-sensitive colour compounds.
Scalable Batch Capacity
Plants are configured to requirement from pilot scale upward, with modular expansion.
Frequently Asked Questions
Does Mechotech supply the complete machinery for Flowers - Dark Red Hibiscus / Day Lillis?
What specification can the Flowers - Dark Red Hibiscus / Day Lillis plant achieve?
What production capacities are available for the Flowers - Dark Red Hibiscus / Day Lillis plant?
Which raw material is processed in the Flowers - Dark Red Hibiscus / Day Lillis plant?
How does the Flowers - Dark Red Hibiscus / Day Lillis extraction process work?
What pigments give the reddish-purple colour, and what affects stability?
What applications does the reddish-purple extract serve?
Which related colour pages does Mechotech list with Flowers - Dark Red Hibiscus / Day Lillis?
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