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.
COMERG • Sage extraction
Garden Sage
Salvia officinalis L.
Turn sage leaf into a fresh, herbaceous extract with COMERG equipment. Our cold, room-temperature, low-pressure process captures the crisp, camphoraceous, slightly piney character of sage, the 1,8-cineole and the thujone-camphor notes that define it, with no heat to dull the top.
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25% 1,8-cineole
The herb
A clean, herbaceous classic
Sage, Salvia officinalis, is one of the oldest medicinal and culinary herbs of the Mediterranean. Its fresh, warm, camphoraceous scent comes from 1,8-cineole together with the thujones and camphor, a crisp, slightly piney profile that perfumers use as a herbaceous note and a natural fixative.
The leaf is processed cold, so the finished extract keeps the lively, true-to-leaf character rather than a flat, cooked note. Nothing is added, and the natural balance of the herb is carried straight into the extract.
Raw material
Botanical nameSalvia officinalis L.
FamilyLamiaceae
Plant partLeaves
ConditionFresh or dried
OriginBulgaria
HarvestJuly
The extract
What the process delivers
Run on COMERG equipment, sage leaf yields a standardised, high-strength extract, batch after batch. Because the extraction is cold and solvent-light, with no high heat, the fresh herbaceous character carries straight through to the finished oil. The figures below are typical of a standardised BSag-20.1 grade.
25%1,8-Cineole
≥70%Volatile oil v/w
97%Compound recovery
<25 °CExtraction temp
~150 kgLeaves 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 fresh character of sage leaf.
1
Pressurised R134a flooding
Non-toxic liquefied R134a gas is introduced to the sage leaf 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 1,8-cineole, the thujones, camphor and the herbaceous compounds, while the fresh, 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 sage 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%. 1,8-Cineole leads this chemotype, with caryophyllene, the thujones and camphor giving sage its crisp, warm, herbaceous character.
0%10%18%25%+
Sage chemotypes vary; the thujones and camphor are characteristic of the herb. Other extractables present. Per-batch GC-MS report available on request.
Specification
BSag-20.1 at a glance
Identity & origin
Botanical nameSalvia officinalis L.
Plant partLeaves
OriginBulgaria
Product codeBSag-20.1
CAS No.84082-79-1
EINECS No.282-025-9
Production
MethodLiquefied-gas extraction
TemperatureBelow 25 °C
SolventFood-grade (Dir. 97/60/EC)
Solvent residue< 0.1 g/kg
StandardisationDeclared volatile oil
Concentration1 kg ≈ 100-200 kg leaves
Physical
AppearanceYellow oily liquid
Volatile oil≥ 70% v/w (ASTA)
INCI nameSalvia Officinalis Leaf Extract
DensityOn request
Refractive indexOn request
Flash point> 199 °C
Solubility & handling
In oilsFully soluble
In 40% alcoholPartial
In waterInsoluble
UseFragrance, cosmetic, flavour
ContainerLined aluminium bottle
Shelf life2 years
Why sage, why cold
A fresh herb, captured whole
A concentrated leaf
Salvia officinalis, Bulgaria
Plant partLeaves
Leaves per kg extract~100-200 kg
Volatile oil≥ 70% v/w
HarvestJuly
Captured cold
Versus heat-based methods
1,8-Cineole25% kept
Thujone-camphorProfile preserved
Process temperature< 25 °C
Fresh top notesPreserved
Applications
What you can make
Fougère & chypre accords
Herbaceous fixative
Toning cosmetics
Soaps & home scent
Flavour & supplements
Sage extract naturally contains thujone, which is restricted in food and regulated for safety. Use it diluted and within the applicable thujone limits for your product type, not undiluted on skin, and approach sensitive skin with care. Like all our extracts it is a raw material for formulation. Keep away from children.
Why the COMERG line
Built for fresh herbs like sage
The crisp, lively character above is what the right equipment makes repeatable. Our line is engineered around the things that matter when you process an aromatic, top-note herb.
Room temperatureR134a aerosol extraction works cold and at low pressure, so the fresh, volatile top notes are never cooked off.
Keeps it freshThe 1,8-cineole and herbaceous terpenes that carry sage's crisp scent 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.
Fast cycles, high yieldLow-pressure extraction is quick and recovers up to 97% of the leaf'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 sage, with a fresh, true-to-leaf 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%+ | 65-80% | ~85% | ~85% |
| Fresh top notes | Preserved | Partly lost | Mostly kept | Mostly kept |
| Compound recovery | up to 97% | 70-85% | 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 leaf to extract
The machines for sage
A complete COMERG line takes sage from fresh leaf 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 sage oil cold, below 25 °C, from 10 l pilot units up to 2000 l.
Room temp • 97% recoveryView system
Conveyor dryer
Dries the sage leaf gently and evenly before extraction, protecting the colour and the fresh, volatile aroma.
Prep stageView machine
The complete botanical 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 sage extract BSag-20.1.
Download PDF
Questions
Sage extraction, explained
A 100% natural sage leaf extract from Salvia officinalis, product code BSag-20.1. It reaches at least 70% volatile oil, led by around 25% 1,8-cineole with the characteristic thujones and camphor, and 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.
Sage's freshness lives in light terpenes like 1,8-cineole that prolonged heat can flatten. Cold R134a extraction concentrates them cleanly, so the extract keeps its crisp, true-to-leaf herbaceous character.
Roughly 1 kg of extract represents around 100 to 200 kg of sage leaf.
Sage extract naturally contains thujone, which is restricted in food and regulated for safety. It can be used in flavour and supplement formulation within the applicable thujone limits, at low levels, and is not for direct or undiluted use.
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.
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 sage line
Tell us your throughput and target product. We will recommend the right system, share a yield estimate for your sage, and reply with pricing and lead time, usually within 48 hours.
COMERG extracts are raw materials for product formulation. Sage extract contains naturally occurring thujone and must be used within applicable limits; it is 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 sage line
Equipment for processing sage
The machines below make up the sage line, the equipment that takes the leaf through to a finished extract. Request a quote on any unit and we will reply with pricing and lead time.
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