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Methods & Processes
Comparatively Speaking—Water vs. Oil vs. Fluoro vs. Silicone Extraction of Broccoli Fractions
By: Anthony J. O'Lenick Jr., Siltech LLC
Posted: May 29, 2012
page 2 of 2
The menstruum dimethicone copolyol, i.e. PEG-8 dimethicone, rich in water-soluble groups, was the most effective of the four examples in extracting material; 7% by weight was extracted. The functional groups present on the FTIR after spectral subtraction were alcohols, some esters, a large amount of unsaturation, and some ketones. The extract changed in color from water-white to an intense yellow. The skin feel of the product was cosmetically appealing, providing a smooth feel with outstanding glide and spread. The extract could be used as-is or incorporated into water. The extract has a noticeable sulfur smell, which may be an indication of sulforaphane being present.
Fluoro-soluble Silicone Extract
The fluoro silicone perfluorononyl dimethicone menstruum, rich in fluoro-soluble groups, extracted 1.2% of the plant material. The functional groups present on the FTIR after spectral subtraction were ester and unsaturation. The extract changed in color from a water white to a pale yellow. The skin feel of the product was quite cosmetically appealing, providing a smooth feel with outstanding spread and water-proofing properties.
While solvent-based extraction have some limitations, including their selectivity to extract only active materials that are soluble in the chosen solvent, menstrua based on the partition coefficient technology described allow for the rapid screening and effective extraction of various classes of materials from the same source.
1. US Pat application 20110201836