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MILESTONE

Microwave Extraction System - NEOS & NEOS GR

NEOS Rapid, Solvent-Free Microwave Extraction SFME) of Essential Oil

NEOS GR Microwave Hydrodiffusion & Gravity (MHG)system

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QUOTATION
INFORMATION
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DESCRIPTION APPLICATIONS VIDEO BROCHURES
DESCRIPTION

NEOS         
Rapide Solvent-Free Microwave Extraction (SFME) of Essential Oil

NEOS-GR   
Rapide Solvent-Free Extraction by Microwave Hydrodiffusion and Gravity (MHG)


While the analysis step is complete after 15 to 30 minutes, extraction takes at least several hours. The extraction step of essential oils represents 70 percent of the total processing time.

Microwave extraction makes use of physical and chemical phenomena that are fundamentally different compared to those applied in conventional isolation techniques.
These novel processes can produce essential oil in concentrate form, free from any residual solvents, contaminants, or artifacts.

The NEOS system leaded to the grant of the European patents 1439218, 1618798 and 1629725.


 

How NEOS works

 

The Milestone NEOS performs solvent-free microwave extraction at atmospheric pressure of essential oil in plant material.

 

The method involves placing the sample in the microwave reactor, without any added solvent or water. The internal heating of the water within the sample distends its cells and leads to rupture of the glands and oleiferous receptacles.
This process thus frees essential oil, which is evaporated by the in-situ water of the plant material.

 

A cooling system outside the microwave oven continuously condenses the vapours, which are collected in specific glassware.
The excess of water is refluxed back to the extraction vessel in order to restore the in-situ water to the sample. Once the essential oils have been extracted they can be analyzed directly by GC-MS without any preliminary clean-up or solvent exchange steps.


 

Example of typical applications

 
Extraction of essential oils from orange peel
  NEOS* Hydro-distillation Cold pressing
Extraction time (min.) 10 180 60
Yield (%) 0,4 0,4 0,15
Total oxygenated compounds (%) 1,6 0,9 1,1
Total non oxygenated compounds (%) 97,4 98,5 98,2

 
Extraction of essential oils from aromatics herbs
  NEOS Hydro-distillation
  Time (min) Yield (%) Time (min) Yield (%)
Basil (Ocimum Basilicum L.) 30 0,029 270 0,028
Garden mint (Mentha Crispa L.) 30 0,095 250 0,095
Thyme (Thymus Vulgaris L.) 30 0,160 250 0,161

 

 

 

APPLICATIONS
VIDEO
BROCHURES
MILESTONE website
MILESTONE
Microwave systems for Sample preparation,digestion, extraction, synthesis ...
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Prices are quoted in euro (taxes excluded) and apply in the Benelux (recycling fee included). They are subject to change without notice. We reserve the right to adjust pricing errors and to limit quantities.

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