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all about plant extraction
Risun Bio-Tech Inc  Oct 31, 2016

All about Plant Extraction 

  The origin of extracting active principles from plants is lost in the night of time. Humans learned very early about plant benefits and 

developed the first techniques to obtain what we now call an "extract". These first extracts were obtained mainly from water-based 

processes or alcohol fermentation using procedures such as infusion, maceration, decoction or distillation.

The simplicity of these first procedures, as well as the tools, materials and ways of heating, required experience and know-how 

rather than science.

    Even today, in spite of precise automation, more adequate equipment, advances in process engineering and analysis, as well as new 

extraction technologies such as high pressure, microwaves or ultrasound, the notion of plant extraction expertise still rests on the 

proper association between the mastery of current technology and tradition.


  A plant extract must, by definition, be obtained from a solid-liquid extraction.

    Solid-liquid extraction is defined as an operation to separate elements contained in a solid body by solubilization with a solvent, 

and it may be followed by purification.

    The extract is contained in the solvent. If the solvent is an edible solvent, it is not necessary to dissociate it from the extract. If the 

solvent is not an edible solvent, separation allows obtaining a dry extract.