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Ginger

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COMERG • Ginger extraction

Dried Ginger

Zingiber officinale Roscoe

Turn ginger rhizome into a warm, food-grade extract with COMERG equipment. Our cold, room-temperature, low-pressure process captures the spicy, woody-citrus heart of the root, the zingiberene that defines ginger's aroma, along with the warming pungent fraction, all without heat.

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42% zingiberene

The spice

The warm, spicy rhizome

Ginger is the rhizome of Zingiber officinale, a knobbly underground stem with a warm, woody, faintly citrus aroma and a familiar peppery heat. The scent comes mainly from zingiberene, the signature sesquiterpene of the root, while the warming pungency sits in the heavier gingerol and shogaol fraction.

The rhizome is dried, milled and processed cold, so the finished extract carries the full warmth of the spice. Ginger belongs to the same family as cardamom and turmeric, and shares their rich, aromatic character.

Raw material

Botanical nameZingiber officinale
FamilyZingiberaceae
Plant partRhizome
ConditionDried, ground
OriginIndia
AvailabilityAll year

The extract

What the process delivers

Run on COMERG equipment, ginger rhizome yields a standardised, high-strength extract, batch after batch. Because the extraction is cold and solvent-light, with no high heat, the warm aromatic notes carry straight through to the finished oil. The figures below are typical of a standardised BGin-70.1 grade.

≥70%Volatile oil v/w
42%Zingiberene
14%Sesquiphellandrene
<25 °CExtraction temp
97%Compound recovery
~35 kgRhizome per kg extract

The method

Cold extraction, in three steps

No heat, no leftover solvent. This is what happens inside a COMERG aerosol system, and why the extract keeps the full ginger character.

1

Pressurised R134a flooding

Non-toxic liquefied R134a gas is introduced to the milled ginger rhizome at controlled, low pressure. There is no heat, the cycle begins and stays at room temperature.

2

Selective aromatic dissolution

The liquid gas gently dissolves the zingiberene and the warm sesquiterpenes, while the heat-sensitive aromatic notes stay structurally intact.

3

Recovery and pure extract

The R134a is fully recovered and recycled in a closed loop. What is left is a concentrated ginger extract, at least 70% volatile oil, with under 0.1 g/kg residue.

Aromatic profile

The compound fingerprint

Principal constituents identified by GC-MS, each above 1%. Zingiberene dominates the profile, supported by a family of sesquiterpenes that together give ginger its warm, woody-spicy signature.

a-Zingiberene
42%
beta-Sesquiphellandrene
14%
beta-Bisabolene
11%
cis-Menth-2-en-1-ol
10%
a-Curcumene
9%
E,E-a-Farnesene
6%
trans-Menth-2-en-1-ol
2%
0%20%30%42%+

Other extractables present, including the warming gingerol fraction. Per-batch GC-MS report available on request.

Specification

BGin-70.1 at a glance

Identity & origin

Botanical nameZingiber officinale
Plant partRhizome
OriginIndia
Product codeBGin-70.1
CAS No.84696-15-1
EINECS No.283-634-2

Production

MethodLiquefied-gas extraction
TemperatureBelow 25 °C
SolventFood-grade (Dir. 97/60/EC)
Solvent residue< 0.1 g/kg
StandardisationDeclared volatile oil
Concentration1 kg ≈ 30-40 kg rhizome

Physical

AppearanceRed-yellow oily liquid
Volatile oil≥ 70% v/w (ASTA)
INCI nameZingiber Officinale Root Extract
DensityOn request
Refractive indexOn request
Acid valueOn request

Solubility & output

In oilsFully soluble
In 40% alcoholPartial
In waterInsoluble
Flash point> 93 °C
ContainerLined aluminium bottle
Shelf life2 years

Why ginger, why cold

A warm root, captured whole

A concentrated rhizome

Zingiber officinale, India

Plant partRhizome, milled
Rhizome per kg extract~30-40 kg
Volatile oil≥ 70% v/w
FamilyZingiberaceae

Captured cold

Versus steam distillation

Zingiberene42% retained
Pungent fractionCarried through
Process temperature< 25 °C
Aromatic notesPreserved

Applications

What you can make

Food & flavour Beverages & spirits Bakery & confectionery Meat & savoury Fine perfumery Cosmetics & warming care

The extract can be taken concentrated or diluted in a carrier oil to suit the application. Typical filling rates for the concentrated extract in food are 5 to 100 mg per kilogram of product.

Why the COMERG line

Built for warm spice like ginger

The warmth above is not an accident of the root alone, it is what the right equipment makes repeatable. Our line is engineered around the things that matter when you process a high-value spice.

Room temperatureR134a aerosol extraction works cold and at low pressure, so the warm aromatic notes are never cooked off.
Keeps the zingibereneZingiberene carries almost the whole ginger aroma. Cold extraction concentrates it cleanly, alongside the warming pungent fraction.
Fully automatedClosed-loop systems run the cycle for you, so results stay consistent and one operator can handle the line.
Fast cycles, high yieldLow-pressure extraction is quick and recovers up to 97% of the root's compounds, more than older high-pressure CO2 lines.
Scales with youFrom a 10 l pilot unit to 2000 l production, the same method grows from R&D batches to full output.
Clean and economicalIt uses around 85% less energy than solvent methods and needs no special hazardous-location facility.

Why it wins

Compared to the alternatives

Against steam distillation, solvent and CO2, cold R134a extraction keeps more of the ginger, with a clean, warm, high-strength result.

FeatureCOMERG R134aSteam distillationSolventCO₂ supercritical
Process temperature< 25 °C (room temp)100-150 °C40-70 °C31-80 °C
Aromatic preservation95%+60-75%~85%~80%
Compound recoveryup to 97%70-85%80-90%85-92%
ZingibereneConcentratedRetained, some lossRetainedMostly retained
Pungent fractionCarried throughLargely lostCarried throughCarried through
Solvent residue< 0.1 g/kgNoneNeeds post-purgeNone
Energy use85% less vs solventHighMedium-highVery high

From rhizome to extract

The machines for ginger

A complete COMERG line takes ginger from raw rhizome to a finished extract. These are the core stages, each available as standalone equipment.

View all equipment
Product specificationFull composition, properties, packaging and handling for ginger extract BGin-70.1.
Download PDF

Questions

Ginger extraction, explained

A 100% natural ginger rhizome extract, product code BGin-70.1. It reaches at least 70% volatile oil, led by around 42% zingiberene, with no additives.

Liquefied food-grade gas extraction at room temperature, below 25 °C, and low pressure. Because there is no high heat, the delicate aromatic compounds are preserved and solvent residue stays below 0.1 g/kg.

Ginger's aroma lives in zingiberene and a family of sesquiterpenes, while its heat comes from the gingerol fraction. Cold R134a extraction concentrates the aromatics cleanly and carries the warming compounds through, without the prolonged heat that can dull them.

Roughly 1 kg of extract represents around 30 to 40 kg of dried, milled ginger rhizome.

Yes. The same cold process runs from a 10 l pilot unit to 2000 l production systems, so you can start small and grow without changing method.

It is produced with a food-grade solvent per Directive 97/60/EC. It is a raw material for formulation, not intended for direct consumption or undiluted topical use, and users are responsible for compliance with applicable legislation.

Yes. A per-batch GC-MS analysis is available on request, and a Safety Data Sheet per 2006/1907/EC is supplied with the product.

Set up your ginger line

Tell us your throughput and target product. We will recommend the right system, share a yield estimate for your ginger rhizome, and reply with pricing and lead time, usually within 48 hours.

COMERG extracts are raw materials for product formulation. They are not intended for direct consumption or for undiluted topical application in cosmetics, perfumery or aromatherapy. This information is provided to the best of our knowledge and is not a substitute for prior testing of suitability for the intended use. Keep away from children.

The ginger line

Equipment for processing ginger

The machines below make up the ginger line, the equipment that takes the rhizome through to a finished extract. Request a quote on any unit and we will reply with pricing and lead time.

  • 5L Fully Automated Compound Remediation System

    5L Fully Automated Compound Remediation System

    A bench-scale system that refines a finished botanical extract, selectively removing unwanted constituents at room temperature while preserving the aromatics and actives.

  • 6" SS Wiped Film Distillation System

    6″ SS Wiped Film Distillation System

    A stainless-steel short-path wiped film system that distills and purifies heat-sensitive botanical fractions in seconds under deep vacuum, with no thermal damage.

  • Automated Vape Cartridge Filling Machine

    Automated Vape Cartridge Filling Machine

    A compact automated filler for viscous botanical oils, with a heated mixer, jacketed feed and temperature-controlled nozzle for clean, bubble-free 0.3-3 mL doses.

  • Dual-Cut Botanical Harvester

    Dual-Cut Botanical Harvester

    A tractor-towed harvester that cuts flowering tops and stalks in a single pass, feeding a self-unloading 5 m³ bunker at up to 2 hectares per hour.

  • EtOH Fully Automated Ethanol Extraction System

    EtOH Fully Automated Ethanol Extraction System

    A scalable 20-1000L ethanol platform that washes botanicals with chilled food-grade ethanol and recovers the solvent in a closed loop for clean, full-spectrum extracts.

  • Gas Chromatography Analysis System

    Gas Chromatography Analysis System

    A compact benchtop GC-FID analyser with a built-in hydrogen generator and dual columns for fast, low-cost potency, aroma-profile and residual-solvent testing.

  • Mold & Yeast Remediation System

    Mold & Yeast Remediation System

    A low-pressure decontamination system that removes mold, yeast and microbial load from botanical material and extracts at room temperature, with no heat or irradiation.

  • SHW 120L Subcritical Hot Water Extraction System

    SHW 120L Subcritical Hot Water Extraction System

    A solvent-free 120L production system that extracts polar, water-soluble compounds with pressurised hot water, delivering both a concentrated extract and an aromatic water.

  • SHW 60L Subcritical Hot Water Extraction System

    SHW 60L Subcritical Hot Water Extraction System

    A solvent-free 60L system that extracts polar, water-soluble compounds with pressurised hot water, yielding both a concentrated extract and a fragrant aromatic water.

  • Stick & Seed Separation System

    Stick & Seed Separation System

    A sifting and air-separation line that sorts dried botanical biomass into three clean fractions – flower and leaf, stalk, and seed – ready for extraction or sale.