1000L HTE Fully Automated Aerosol Extraction System
An industrial-scale aerosol extraction system for very high-volume, room-temperature, residue-free processing of any botanical.
COMERG • Nutmeg extraction
Nutmeg Seed
Myristica fragrans Houtt.
Turn nutmeg kernels into a warm, food-grade spice extract with COMERG equipment. Our cold, room-temperature, low-pressure process captures the sweet, woody, slightly musky character of nutmeg, the sabinene and myristicin that define it, with no heat to dull its warmth.
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37% sabinene
The spice
A warm, sweet-woody kernel
Nutmeg is the brown inner seed of Myristica fragrans, a tropical evergreen whose fruit also gives the spice mace, the scarlet aril around the kernel. Its warm, sweet, slightly musky aroma comes from sabinene and the pinenes, lifted by the myristicin that gives nutmeg its signature depth.
The kernels are milled and processed cold, so the finished extract keeps the rounded warmth of fresh-grated nutmeg rather than a cooked, flat note. Nothing is added, and the spice's full character is carried straight into the extract.
Raw material
Botanical nameMyristica fragrans Houtt.
FamilyMyristicaceae
Plant partSeeds
ConditionDried, ground
OriginIndia
AvailabilityAll year
The extract
What the process delivers
Run on COMERG equipment, nutmeg kernels yield a standardised, high-strength extract, batch after batch. Because the extraction is cold and solvent-light, with no high heat, the warm woody aroma carries straight through to the finished oil. The figures below are typical of a standardised BNuM-70.1 grade.
37%Sabinene
≥70%Volatile oil v/w
0.290DPPH IC50 mg/ml
<25 °CExtraction temp
~5.5 kgSeeds per kg extract
<0.1 g/kgSolvent residue
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 nutmeg character.
1
Pressurised R134a flooding
Non-toxic liquefied R134a gas is introduced to the milled nutmeg kernels 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 sabinene, the pinenes, myristicin and the warm aromatic compounds, while the volatile top 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 nutmeg 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%. Sabinene leads by a clear margin, with the pinenes behind it, while myristicin and elemicin carry the deep, characteristic warmth of nutmeg.
0%15%25%37%+
Other extractables present, including terpinen-4-ol, myrcene and safrole. Per-batch GC-MS report available on request.
Specification
BNuM-70.1 at a glance
Identity & origin
Botanical nameMyristica fragrans Houtt.
Plant partSeeds
OriginIndia
Product codeBNuM-70.1
CAS No.84082-68-8
EINECS No.282-013-3
Production
MethodLiquefied-gas extraction
TemperatureBelow 25 °C
SolventFood-grade (Dir. 97/60/EC)
Solvent residue< 0.1 g/kg
StandardisationDeclared volatile oil
Concentration1 kg ≈ 5-6 kg seeds
Physical
AppearanceLight yellow oily liquid
Volatile oil70-80% v/w (ASTA)
INCI nameMyristica Fragrans Kernel Extract
Density975 g/l
Refractive index1.5249
Acid value3.9 mg KOH/g
Solubility & handling
In oilsFully soluble
In 40% alcoholPartial
In waterInsoluble
Flash point> 61 °C
TransportDangerous good (ADR)
Shelf life2 years
Why nutmeg, why cold
A warm spice, captured whole
A concentrated seed
Myristica fragrans, India
Plant partKernels, milled
Seeds per kg extract~5-6 kg
Volatile oil≥ 70% v/w
AntioxidantDPPH IC50 0.290 mg/ml
Captured cold
Versus heat-based methods
Sabinene37% kept
Myristicin7%, preserved
Process temperature< 25 °C
Warm top notesPreserved
Applications
What you can make
Baked goods & desserts
Sauces & savoury
Mulled & spiced drinks
Spice blends
Fine perfumery
Cosmetics
This nutmeg extract is edible and can be used concentrated or diluted in a carrier oil to suit the application. Typical filling rates for the concentrated extract in food are 35 to 600 mg per kilogram of product. It is classed as a dangerous good for transport (ADR) and is shipped accordingly.
Why the COMERG line
Built for warm spices like nutmeg
The rounded, sweet warmth above is what the right equipment makes repeatable. Our line is engineered around the things that matter when you process a high-oil, aromatic seed.
Room temperatureR134a aerosol extraction works cold and at low pressure, so the warm, volatile top notes are never cooked off.
Keeps the warmthThe sabinene, pinenes and myristicin that carry nutmeg's depth come through cleanly, not flattened by heat.
Fully automatedClosed-loop systems run the cycle for you, so results stay consistent and one operator can handle the line.
High-strength yieldLow-pressure extraction is quick and recovers up to 97% of the seed's oil, for a concentrated extract over 70% volatile oil.
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 nutmeg, with a warm, high-strength result.
| Feature | COMERG R134a | Steam distillation | Solvent | CO₂ supercritical |
|---|---|---|---|---|
| Process temperature | < 25 °C (room temp) | 100-150 °C | 40-70 °C | 31-80 °C |
| Aromatic preservation | 95%+ | 70-85% | ~85% | ~85% |
| Warm top notes | Preserved | Partly lost | Mostly kept | Mostly kept |
| Compound recovery | up to 97% | 75-88% | 80-90% | 85-92% |
| Solvent residue | < 0.1 g/kg | None | Needs post-purge | None |
| Energy use | 85% less vs solvent | High | Medium-high | Very high |
| Special facility | Not required | Not required | Required | High-pressure safety |
From seed to extract
The machines for nutmeg
A complete COMERG line takes nutmeg from raw kernel to a finished extract. These are the core stages, each available as standalone equipment.
Aerosol extraction
The heart of the line. Liquefied-gas systems that pull nutmeg oil cold, below 25 °C, from 10 l pilot units up to 2000 l.
Room temp • 97% recoveryView system
Seed separation
Cleans and separates the nutmeg kernels from shell and mace before milling, so only the sound seed reaches the extractor.
Prep stageView machine
The complete spice line
From a 10 l pilot system to industrial 2000 l lines, the same cold process scales with your volume.
10 l - 2000 lBrowse all equipment
Product specificationFull composition, properties, packaging and handling for nutmeg extract BNuM-70.1.
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Questions
Nutmeg extraction, explained
A 100% natural nutmeg kernel extract from Myristica fragrans, product code BNuM-70.1. It reaches at least 70% volatile oil, led by around 37% sabinene with 7% myristicin, 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.
Nutmeg's warmth lives in light terpenes like sabinene and the pinenes that prolonged heat can flatten. Cold R134a extraction concentrates them cleanly so the extract keeps its rounded, sweet-woody character.
Roughly 1 kg of extract represents around 5 to 6 kg of nutmeg kernels, a high-strength yield typical of this oil-rich seed.
Yes. It is produced with a food-grade solvent per Directive 97/60/EC. Typical filling rates are 35 to 600 mg per kilogram of food product. It is a raw material for formulation, not for direct or undiluted use.
Nutmeg extract is classed as a dangerous good for transport under ADR, RID, ICAO and IMDG regulations, and is packed and shipped accordingly. A Safety Data Sheet per 2006/1907/EC is supplied with the product.
Yes. A per-batch GC-MS analysis is available on request.
Set up your nutmeg line
Tell us your throughput and target product. We will recommend the right system, share a yield estimate for your nutmeg, 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. Nutmeg extract is classed as a dangerous good for transport and is shipped accordingly. 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 nutmeg line
Equipment for processing nutmeg
The machines below make up the nutmeg line, the equipment that takes the seed through to a finished extract. Request a quote on any unit and we will reply with pricing and lead time.
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