Filtering System in the Process of Maceration

The general process of maceration on a small scale consists of placing the suitablycone crusher material, or a moderately coarse powder made from it, in a closed vessel and adding the selected solvent called menstruum. The system is allowed to stand for seven days, with occasional shaking. The liquid is then strained off and the solid residue, called marc,is pressed to recover as much occluded solution as possible.

When the materials enter the field of the hammer, it is impacted by the hammers, thrown onto the impact plate, and crushed. The stuff springs from the impact plate, is impacted by the hammers again, and thrown onto impact plate. This process will last until the stuff meets the requirement and falls from the machine. Adjusting the distance between impact frame and rotor frame can change the shape and size of the output.

Solvent polarity is important when extracting polar solutes and when strong analyte-matrix interactions are present. Organic solvents are frequently added to the carbon dioxide extracting fluid to alleviate the polarity limitations. Of late, instead of carbon dioxide, argon is being used because it is inexpensive and more inert. Advanced Phytonics Limited (Manchester, UK) has developed this patented technology termed phytonics process.

The quality of the extracts and the spectrum of constituents obtained by maceration or digestion (i.e. maceration at higher temperature) are also influenced by the ratio of herbal drug to solvent. The quantity of extracted matter increases with the volume of extraction solvent. For example,Salvia officinalis flowers achieves almost exhaustive extraction and thus the full spectrum of constituents obtained with percolation can be achieved with a drug.

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