CO2 Extraction Plants

Evening Primrose Seed GLA-Rich Oil (CO₂)

Extraction Technologies

Supercritical CO₂ Extraction (SCFE)

Mechotech designs and manufactures turnkey extraction plants that process evening primrose seeds to recover GLA-rich oil. We supply the machinery for the route selected after screening — raw-material preparation, extraction, separation, concentration or recovery, and drying or collection — configured to the target specification. Mechotech's technology screening identifies one candidate route for this feedstock: Supercritical CO₂ Extraction (SCFE) (relevant screening, rank 66 of 100 in that technology's screening).

For evening primrose seeds with GLA-rich oil as the target, there is one candidate technology: Supercritical CO₂ Extraction (SCFE). By route — Supercritical CO₂ (SCFE): relevant screening, rank 66 of 100, CO₂; optional ethanol modifier. For the best-ranked route, Supercritical CO₂ (SCFE), the screening flags: nonpolar fraction preferred; polar targets may need modifier and separate validation. These are screening candidates rather than guarantees: the final technology, operating parameters and plant configuration are established during process development and pilot validation. Product-contact parts are built in SS 316L with CIP-cleanable design, and automation is configured to the project.

Technical Specifications

Product	Evening Primrose Seed GLA-Rich Oil (CO₂) Extraction Plant
Feedstock	Evening primrose seeds
Part / Feed Form	Seeds
Target Extract	GLA-rich oil
Extraction Method	CO2
Technology Count	1
Product-contact Material	SS 316L, electropolished, CIP-cleanable
Automation	PLC-SCADA, configured to requirement

Plant Capacities

Plant Scale	Seed Throughput	Typical Use
Pilot	Configured to your feedstock and trial plan	Product development, parameter validation
Semi-Commercial	Configured to raw-material supply and buyer volume	Contract manufacturing, scale-up trials
Commercial	Configured to raw-material supply and confirmed buyer volume	Commercial production at confirmed buyer volume

Capacity is configured to raw-material supply and confirmed buyer volume; we recommend a pilot plant to validate process parameters before scaling. No fixed throughput is quoted for this product.

Manufacturing Process

Each extraction method follows a different process — pick a method to see its steps.

Raw-Material Conditioning

Evening primrose seeds are cleaned and conditioned so gla-rich oil is accessible to supercritical CO₂; moisture and particle size are set during process development.

Extraction Vessel Loading

Conditioned evening primrose seeds are charged into the high-pressure extraction vessel.

Supercritical CO₂ Extraction

Supercritical CO₂ passes through the charge and dissolves gla-rich oil; an ethanol modifier can be evaluated where polar fractions are also required, and operating pressure and temperature are set in process development.

Separator Collection

Pressure is reduced in separator stages so the extracted gla-rich oil drops out of the CO₂ and is collected.

CO₂ Recycle

Gaseous CO₂ is re-liquefied and recirculated to the extractor, limiting make-up gas demand.

Finishing & Packing

The collected gla-rich oil is polished by filtration as needed and packed to the required specification.

Major Plant Equipment

Raw-material cleaning and size-reduction system
Supercritical CO₂ extraction vessels
CO₂ pump, heat exchangers and chiller
Separator vessels
CO₂ recovery / recycle system
Optional ethanol-modifier dosing skid
Product collection vessels and polish filtration
CIP (clean-in-place) system
Storage and finished-product tanks
PLC-SCADA control panel and instrumentation

Plant Output

GLA-rich oil

Applications

Pharmaceutical standardised ingredient supply — Evening Primrose Seed GLA-Rich Oil (CO₂)
Nutraceutical capsule, tablet, and supplement manufacturing — Evening Primrose Seed GLA-Rich Oil (CO₂)
Food and beverage applications — Evening Primrose Seed GLA-Rich Oil (CO₂)
Cosmetic and personal care active ingredients — Evening Primrose Seed GLA-Rich Oil (CO₂)
Export to regulated-market ingredient buyers — Evening Primrose Seed GLA-Rich Oil (CO₂)

Key Features

Supercritical CO₂ (SCFE) — Relevant Screening Fit
Best-ranked route for evening primrose seeds: rank 66 of 100 in Mechotech's supercritical CO₂ extraction screening, using CO₂; optional ethanol modifier. Ranks are directional screening priorities, not measured yield, ROI or plant guarantees.
Evening primrose seeds — Single Candidate Route
Routes screened for evening primrose seeds: Supercritical CO₂ (SCFE) — relevant, rank 66. The process tab above shows the steps for this route.
Seeds Feed Form
The candidate routes are defined for evening primrose seeds; feedstock assay and moisture are measured as pilot inputs and the feed form is set during process development.
Parameters Fixed After Pilot Trials
Recovery of GLA-rich oil, selectivity, solvent or water duty, quality and cleaning are measured in pilot trials, starting with small-scale feed trials, before final plant parameters are fixed.
SS 316L Hygienic Construction
Product-contact surfaces are SS 316L and CIP-cleanable, in a hygienic design suited to food, nutraceutical and pharmaceutical supply chains; PLC-SCADA automation with recipe control can be configured to the project scope.

Frequently Asked Questions

What is an evening primrose seed extraction plant for GLA-rich oil?

It is a turnkey Mechotech plant that processes evening primrose seeds to recover GLA-rich oil. The plant covers raw-material preparation, extraction, separation, concentration or fraction collection, and drying or packing, and is configured to the target specification. It sits within Mechotech's wider range of CO₂ extraction plants.

Which plant part or feed form does the evening primrose seed plant process?

The candidate feedstock is evening primrose seeds. The target extract is GLA-rich oil.

Which extraction technology is suitable for evening primrose seeds?

The candidate technology for this feedstock is Supercritical CO₂ Extraction (SCFE) (relevant screening). See the related pages on supercritical CO₂ extraction. These are screening candidates, not guarantees of yield, purity or recovery; the route is confirmed through process development and pilot validation. In Mechotech's technology screening, Supercritical CO₂ Extraction (rank 66 of 100) is ranked directionally as a relevant candidate. Ranks are directional screening priorities at method-family level, not measured yield, ROI or plant guarantees.

How does Mechotech's screening rank the candidate route for evening primrose seeds?

Each technology list in Mechotech's screening ranks 100 feedstock–target opportunities (1 = highest priority). For evening primrose seeds: Supercritical CO₂ (SCFE) rank 66 (relevant). Ranks are directional screening priorities, not measured yield, ROI or plant guarantees, and the evidence is at method-family level, so every route needs pilot validation.

How does the evening primrose seed extraction process work?

Each listed route has its own steps — Supercritical CO₂ (SCFE): Extraction Vessel Loading → Supercritical CO₂ Extraction → Separator Collection. All routes share the same outline: prepare evening primrose seeds, extract GLA-rich oil using the technology-specific step, separate and clarify the extract, concentrate it, and recover, standardise and dry. The process tabs above show every step.

What equipment does the evening primrose seed extraction plant include?

The equipment follows the selected route and includes raw-material cleaning and size-reduction system; supercritical CO₂ extraction vessels; CO₂ pump, heat exchangers and chiller; separator vessels; CO₂ recovery / recycle system; optional ethanol-modifier dosing skid; product collection vessels and polish filtration; CIP (clean-in-place) system. The full list is shown under Major Plant Equipment.

Why is supercritical CO₂ a candidate technology for GLA-rich oil?

Supercritical CO₂ is generally suited to non-polar fractions such as oils and waxes, which is why it is a candidate technology for GLA-rich oil. Where polar fractions are also needed, an ethanol modifier can be evaluated and validated separately.

What output and specification can the evening primrose seed plant deliver?

The listed output is GLA-rich oil. The plant is configured to a customer-declared specification for GLA-rich oil. No fixed purity, grade or yield is claimed until pilot results are available.

What application areas are listed for Evening Primrose Seed GLA-Rich Oil (CO₂)?

The application areas listed on this page are: pharmaceutical standardised ingredient supply; nutraceutical capsule, tablet, and supplement manufacturing; food and beverage applications; cosmetic and personal care active ingredients; export to regulated-market ingredient buyers.

Which related Mechotech extraction pages cover the same material or target?

GLA-rich oil is also covered for borage seeds and blackcurrant seeds.

What capacity is available and is a pilot trial recommended?

Capacity is configured to requirement. Mechotech's technology screening recommends starting with small-scale feed trials to measure recovery, selectivity, solvent or water duty, quality and cleaning before pilot and commercial plant sizes are fixed.

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Evening Primrose Seed GLA-Rich Oil (CO₂)