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Ginger Extraction Plant
Herbal, Botanical & Nutraceutical Extraction

Ginger Extraction Plant

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Large insulated stainless-steel vessel, steel stairs and pipework under a mezzanine inside an installed extraction plant

Ginger Extraction Plant

This page is for spice processors, nutraceutical makers and flavour manufacturers who handle ginger (Zingiber officinale) and want to move from selling dried slices or powder to selling an extract or oil. These plants are listed around dried rhizome, not fresh. Four products can come from it, each with its own plant: an oleoresin, a gingerol-standardised extract, a steam-distilled oil and a CO2 oil. Before anything is specified, settle which of the four you will sell, the form and moisture of the dried rhizome you can secure, the specification your buyer sets (gingerol, shogaol, volatile oil, viscosity) and whether a solvent, water or CO2 route suits your site.

All four routes begin with dried ginger rhizome that has been cleaned and reduced in size. The oleoresin line adds sealed jacketed SS 316L extractors, pressure leaf filtration, a multi-effect vacuum evaporator and a dedicated aroma-recovery unit. The gingerol-extract line uses alcohol or hydro-alcoholic extraction, a filter press, a falling-film / vacuum evaporator and a spray or vacuum dryer. For oil, the plant uses either an SS 316L still with multi-tube condenser and Florentine flask, or a high-pressure CO2 unit that recovers and recirculates its CO2. Configuration follows raw material, product target and capacity.

Indicative Capacity Range

  • 100–5,000 kg feed/day

Key Specification Inputs

Extraction solvent/water, extraction stages, batch time, filtration and recovery.

Technical Specifications

Plant typeGinger plant built for one of four products: oleoresin, gingerol extract, steam-distilled oil or CO2 oil
FeedstockZingiber officinale as dried rhizome, with 8-10% moisture quoted on the oleoresin page
OleoresinFood-grade solvent extraction in sealed jacketed SS 316L extractors, a multi-effect vacuum evaporator and a separate aroma-recovery section; finished to the customer's limits for gingerol, shogaol, volatile oil and viscosity
Gingerol extractAlcohol or hydro-alcoholic extraction, with a configurable range of 2.5% to 60% Total Gingerols by HPLC listed on the product page; delivered as powder or liquid concentrate (5 candidate technologies screened)
Distilled oilSteam distillation of dried rhizome, with hydro, vacuum or pressure modes open to evaluation; the oil is rich in sesquiterpenes and is not the source of the pungent gingerols and shogaols
CO2 oilSupercritical CO2 in high-pressure SS 316L vessels, with CO2 recompression and recirculation; an ethanol modifier can be assessed
FiltrationPressure leaf filters with polishing filters, or a plate-and-frame press with cartridge polish filters, depending on the route
DryingSpray or vacuum tray dryer on the gingerol-extract route only; oleoresin is a viscous concentrate and is not dried
Contact surfacesSS 316L, electropolished and cleaned in place
ControlsPLC-SCADA with recipe-driven batch control, traceability and production reports on the extraction routes
UtilitiesSteam, chilled or cooling water, compressed air, nitrogen and power, confirmed per project
Plant capacitySet per project from rhizome supply, target product

Typical Process Route

1

Intake, Cleaning and Milling

Dried rhizome is authenticated, checked for moisture, cleaned and ground to a particle size suited to extraction. Milling conditions are chosen to protect gingerols, shogaols and volatile oil.

2

Solvent Extraction

Ground ginger is extracted over several cycles in sealed jacketed SS 316L vessels at moderate, controlled temperature, using a food-grade solvent (ethanol or a hydro-alcoholic mix on the gingerol route).

3

Clarification

The miscella is cleared through pressure leaf filters or a plate-and-frame press, then polishing or cartridge filters remove fibre and spent marc.

4

Vacuum Concentration and Solvent Return

Evaporation under reduced pressure keeps heat damage low. Solvent is condensed, purified and returned to the process in a closed loop.

5

Aroma Capture (Oleoresin Route)

A separate aroma-recovery section collects the volatile compounds that give ginger its flavour and smell, and these go back into the finished oleoresin.

6

Standardisation

Oleoresin is finished to limits for gingerol, shogaol, volatile oil, viscosity, moisture and residual solvent. Gingerol extract is assayed by HPLC for total gingerols and adjusted to the declared figure.

7

Drying (Gingerol Extract Route)

Standardised gingerol extract is spray- or vacuum-dried to a free-flowing powder for encapsulation and blending, or it is supplied as a liquid concentrate.

8

Oil Routes: Distillation or CO2

For an oil rather than an oleoresin, the rhizome is either steam-distilled with a multi-tube condenser and a Florentine flask, or extracted with supercritical CO2 that is recovered and recirculated.

9

Testing and Release

Each batch is released on assay or GC-MS profile, plus residual-solvent, heavy-metal, microbial and moisture tests as the route requires.

Major Plant Equipment

  • Cleaning and inspection line for dried rhizome
  • Hammer mill or pulveriser
  • Jacketed SS 316L extraction vessels
  • Solvent storage tanks and transfer pumps
  • Pressure leaf filters, plate-and-frame filter press and cartridge polish filters
  • Multi-effect vacuum evaporator or falling-film / vacuum evaporator
  • Aroma recovery section
  • Solvent recovery unit with condensers
  • Spray dryer or vacuum tray dryer
  • Ribbon blender for standardising
  • SS 316L distillation still with multi-tube condenser and Florentine flask (oil route)
  • High-pressure supercritical CO2 vessel, separator and CO2 recovery loop (CO2 route)
  • Clean-in-place (CIP) skid
  • PLC-SCADA panel, electrical MCC and instruments

Plant Output

Ginger oleoresin, with essential oil and a gingerol-rich fraction as co-productsStandardised gingerol extract powder, within the range on the product page (2.5% to 60% Total Gingerols by HPLC)Liquid gingerol concentrateGinger essential oil from steam distillation, with aromatic hydrosol as a co-productGinger oil as a CO2 extract

Applications

  • Standardised ginger ingredient for pharmaceutical manufacturers
  • Capsules, tablets and digestive or joint-health supplements for nutraceutical brands
  • Flavour for food and drinks, including ginger ale, ginger beer and confectionery
  • Fragrance and aromatherapy blends
  • Active ingredient for cosmetic and personal care formulators
  • Herbal and traditional-medicine preparations

Key Features

  • Four Routes, Kept Separate

    Oleoresin, gingerol extract, distilled oil and CO2 oil need different plants, because gingerols and shogaols give the pungency while the volatile oil carries the aroma and the sesquiterpene fraction.

  • Aroma Recovery for Oleoresin

    A dedicated unit on the oleoresin route captures the volatile flavour and fragrance fraction so it can be restored to the product.

  • Gentle Thermal Handling

    Moderate extraction temperature and vacuum concentration limit the dehydration of gingerols into shogaols, helping to protect pungency and aroma.

  • Distillation Built for Heavy Oil

    The oil line is listed with a multi-tube condenser and a Florentine flask suited to ginger's sesquiterpene-rich oil.

  • Closed Solvent Loop

    A recovery unit returns solvent to the process. The recovery level is established during process development.

Country Pages for Ginger Extraction Plant

This product is listed on the pages of the countries below, each with its own enquiry route. Where Kadali has no office in a country, enquiries are handled from the Accra office.

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Frequently Asked Questions

Which ginger product should I build a plant for?
Work back from what your customer buys. Oleoresin is the whole-spice solvent extract, with essential oil and a gingerol-rich fraction as co-products, and suits flavour and food users. A gingerol-standardised extract is an assay-checked powder or liquid for supplement makers. Distilled oil carries the aroma but not the pungent gingerols, and CO2 oil is the supercritical alternative. Each needs different equipment, so fix the product first. The ginger processing plants page sets the routes side by side.
Why does distilled ginger oil carry aroma but little pungency?
Gingerols and shogaols give ginger its bite, while its aroma comes from volatile sesquiterpenes and monoterpenes, which are the fraction that steam distillation collects. Distilled oil is rich in sesquiterpene hydrocarbons such as zingiberene, sesquiphellandrene and curcumene. If pungency or gingerol content is the goal, the oleoresin or gingerol-extract route is the right one.
How should ginger be prepared before it reaches the plant?
The pages are written around dried rhizome, and a line for drying fresh ginger is not described on them. Fresh rhizome in warm, humid conditions spoils quickly, so drying to a stable moisture soon after harvest, with clean slices and no soil, protects the active compounds and the extraction yield. Moisture, slice or grind size and foreign matter should be written into your supply specification. Drying systems for spices and herbs are covered on the spice and herbal drying plants page.
What gingerol range can the extract line be set up for?
The product page lists a configurable range from 2.5% up to 60% Total Gingerols by HPLC, finished as powder or liquid concentrate. The grade you target, the assay method and the extraction technology are agreed during process development and pilot work on your own raw material.
What affects solvent and energy use on the oleoresin and extract routes?
The main factors are the solvent-to-feed ratio, the number of extraction cycles and how much solvent has to be evaporated. A good recovery loop cuts fresh-solvent purchases, and a stronger extract reaching the evaporator reduces its duty. Ethanol is highly flammable and its vapour/air mixtures are explosive, so solvent areas need explosion-protected electrics, ventilation and closed transfer. Steam, cooling water, compressed air, nitrogen and power are the utilities to plan for. Their quantities depend on the route and feed, so they are confirmed in the proposal.
What should I prepare before raw-material trials?
Collect a representative sample with its moisture, and set out the specification your buyer expects: gingerol or shogaol content, volatile oil, viscosity, residual solvent and heavy metals, plus the assay method. Gingerols convert to shogaols with heat and time, so say whether shogaol content is wanted or limited. Ask in your enquiry whether raw-material trials are possible.
Can ginger be extracted with CO2 instead of solvent?
Supercritical CO2 extraction of ginger rhizome is listed as a route to ginger oil and gingerols, using high-pressure SS 316L vessels with CO2 recompression and recirculation. An ethanol modifier can be evaluated where polar fractions are needed. Ginger has been extracted with supercritical CO2 at roughly 40 to 50 °C and 80 to 250 bar, and your own set-points are fixed during process development.
Can the gingerol extract be spray dried?
Yes, on the gingerol-extract route. After low-temperature vacuum concentration, the standardised extract is spray- or vacuum-dried to a free-flowing powder. Oleoresin is different: it is standardised as a viscous concentrate and is not dried. The spray dryer page describes the dryer itself.
What should I send to request a ginger plant proposal?
Send the rhizome form and moisture, the volume you can source, the product you want (oleoresin, gingerol extract, oil or CO2 oil), the gingerol, shogaol or volatile-oil specification, solvent preference, automation level and site utilities. You can request a proposal with these details.

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