Black Cumin Extract
Black Cumin Extract
Purity Levels
0.5% to 2.0% Thymoquinones by UV
Mechotech designs and manufactures turnkey extraction plants for Black Cumin (Nigella sativa), also known as black seed or kalonji, processing the dried seed into a standardised extract at 0.5% to 2.0% Thymoquinones by UV. Thymoquinone is the principal bioactive quinone concentrated in the seed's volatile-oil fraction, and it is well documented as the marker compound for black-seed extract strength. We supply the complete machinery — seed cleaning, milling, solvent or CO2-based extraction, filtration, vacuum concentration, closed-loop solvent recovery, UV standardisation and drying — to process Nigella sativa seed into a consistent extract for the nutraceutical, pharmaceutical and functional-food industries.
Mechotech's Black Cumin Extract plant is engineered around the chemistry of Nigella sativa seed, in which thymoquinone — a volatile, oxidation-sensitive benzoquinone — sits within the seed's essential-oil fraction alongside p-cymene and other terpenes. Because thymoquinone degrades on prolonged heat exposure and readily oxidises in air, the line runs controlled-temperature extraction, low-temperature vacuum concentration and protected drying to preserve the quinone fraction through to the finished 0.5%-2.0% Thymoquinones by UV specification. Black Cumin (Nigella sativa) is a member of the Ranunculaceae family and is botanically unrelated to true cumin (Cuminum cyminum, Apiaceae family) — the two are frequently confused by name alone, but Mechotech engineers this as a dedicated Nigella sativa line, distinct from its separate Cumin oleoresin plant. Built in SS 316L with electropolished product-contact surfaces, PLC-SCADA automation and full batch documentation, each plant is delivered as a commissioned turnkey system.
Technical Specifications
| Product | Black Cumin Extract (Nigella sativa) Extraction Plant |
|---|---|
| Botanical Name | Nigella sativa |
| Raw Material | Dried Nigella sativa seed (black seed / kalonji) |
| Plant Part | Seed |
| Extract Type | Standardised dry extract (powder) or oil concentrate |
| Standardisation | 0.5% to 2.0% Thymoquinones by UV |
| Extraction Method | Solvent extraction (ethanol/hexane-class) or supercritical CO2 extraction, closed jacketed SS 316L / pressure-rated vessels |
| Product-contact Material | SS 316L, electropolished, CIP-cleanable |
| Filtration System | Plate-and-frame filter press with cartridge polish filtration |
| Concentration System | Low-temperature falling-film / vacuum evaporator with closed-loop solvent recovery |
| Drying System | Vacuum tray dryer or spray dryer with oxidation-protected handling |
| Automation | PLC-SCADA with recipe management, batch traceability and production reporting |
| Plant Capacity | Configured to requirement |
| Utility Requirements | Steam, chilled/cooling water, compressed air, soft water, nitrogen, power (project-specific) |
| Compliance | GMP hygienic design; full documentation for qualification |
| Final Product Form | Free-flowing standardised extract powder or seed-oil concentrate |
Plant Capacities
| Plant Scale | Seed Throughput | Typical Use |
|---|---|---|
| Pilot | Configured to your feedstock and trial plan | Product development, thymoquinone-recovery validation |
| Semi-Commercial | Configured between pilot and commercial scale | Contract manufacturing, scale-up trials |
| Commercial | Configured to raw-material supply and confirmed buyer volume | Export-grade continuous production |
Capacity is configured to raw-material supply and confirmed buyer volume; we recommend a pilot plant to validate thymoquinone recovery and UV-assay repeatability before scaling.
Manufacturing Process
Seed Cleaning & Size Reduction
Dried Nigella sativa seed is cleaned to remove husk, dust and foreign matter, tested for moisture, and milled to a uniform particle size to expose the seed's oil-bearing tissue for efficient solvent contact.
Solvent or Supercritical CO2 Extraction
Milled seed is charged into closed, jacketed SS 316L extractors (or a pressure-rated vessel for CO2 operation) and extracted under controlled, moderated temperature across multiple cycles to maximise recovery of the thymoquinone-rich volatile-oil fraction.
Solid-Liquid Separation & Filtration
The extract is clarified through a plate-and-frame filter press followed by cartridge polish filters, removing spent seed marc ahead of concentration.
Low-Temperature Vacuum Concentration
The filtered extract is concentrated in a falling-film / vacuum evaporator under reduced pressure and closely controlled temperature, protecting the volatile, oxidation-sensitive thymoquinone fraction from thermal loss.
Solvent Recovery
A closed-loop recovery system condenses and recycles the extraction solvent back into production.
UV Standardisation
The concentrate is assayed by UV spectrophotometry for thymoquinone content and adjusted to the declared 0.5% to 2.0% Thymoquinones by UV specification, typically by blending lots of differing potency.
Protected Drying & Quality Control
The standardised extract is vacuum-tray or spray dried under oxidation-protected handling to a free-flowing powder, then released after UV assay, residual-solvent, heavy-metal, microbial, and moisture testing with full certificate-of-analysis documentation.
Major Plant Equipment
- Seed cleaning and destoning system
- Hammer mill (controlled size reduction)
- Stainless-steel jacketed solvent extraction vessels (SS 316L) or supercritical CO2 extraction unit
- Solvent storage tanks
- Solvent transfer pumps
- Plate-and-frame filter press / pressure leaf filter
- Cartridge polish filters
- Falling-film / low-temperature vacuum evaporator
- Closed-loop solvent recovery system
- Condensers & vacuum pumps
- UV spectrophotometry quality-control laboratory setup
- Standardisation/blending vessel
- Vacuum tray dryer / spray dryer
- CIP (clean-in-place) system
- PLC-SCADA control panel, electrical MCC & instrumentation
Plant Output
From Plant to Product
Black Cumin Extract
This botanical is also in the product range of Sureka Life Sciences, our sister concern in botanical ingredients.
Applications
- Nutraceutical capsule, tablet, and softgel supplement manufacturing (immune-support category)
- Pharmaceutical standardised ingredient supply
- Functional food and beverage fortification
- Cosmetic and personal-care antioxidant actives
- Traditional and Unani medicine preparations (black seed formulations)
- Export to regulated-market ingredient buyers requiring UV-verified thymoquinone content
Key Features
GMP Hygienic SS 316L Construction
Electropolished SS 316L product-contact surfaces use GMP hygienic design, with CIP operation between batches.
Oxidation-Protected Processing
Extraction, concentration and drying stages are run at moderated temperature throughout, since thymoquinone is a volatile, oxidation-sensitive compound within the seed's essential-oil fraction.
Closed-Loop Solvent Recovery
Integrated recovery returns the majority of solvent per batch for reuse.
UV-Verified Standardisation
In-process and batch-release UV spectrophotometry assay are used to check the finished extract against its declared 0.5%-2.0% Thymoquinones specification.
Botanically Distinct from True Cumin
The plant is engineered specifically for Nigella sativa (black seed) chemistry — a different genus and family from Cuminum cyminum (true cumin) — with process parameters tuned to thymoquinone rather than cuminaldehyde recovery.
Scalable Batch Capacity
Plants are configured from pilot scale to commercial capacity with modular expansion.
Frequently Asked Questions
Does Mechotech supply the complete machinery for Black Cumin extraction?
Is Black Cumin the same as true Cumin?
Should Black Cumin be processed by solvent extraction or supercritical CO2?
Why is Black Cumin extraction run at controlled, moderated temperature?
What raw material and plant part is used for Black Cumin extract?
What production capacities are available for the Black Cumin Extract plant?
Which industries use Black Cumin extract, and does the plant support GMP qualification?
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