Fragrance extraction
DCFirst Claim
1. A process for selectively extracting at least one natural organic component which is soluble in tetrafluoroethane from natural organic material containing the natural organic component, the process comprisinga) contacting the organic material in a vessel with liquid tetrafluoroethane solvent to dissolve the at least one organic component in the solventb) separating the solution of the at least one natural organic component in the solvent from the remaining organic material;
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6 Assignments
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Accused Products
Abstract
An improved process for extracting an organic component, including fragrant, flavorsome or pharmacologically active components, from an organic material of natural origin using tetrafluoroethane in the liquid phase as the solvent. The process essentially includes contacting the organic material with the tetrafluoroethane in its liquid phase, charging thereby the tetrafluoroethane with the organic component, collecting the mixture thereof, and removing the tetrafluoroethane therefrom so as to isolate the organic component. The process allows the more volatile components of plant derived materials, frequently lost by conventional methods of extraction, also to be extracted. The extracted components, as a result, bear a greater similarity to, and possess a larger number of the characteristics of the original material than conventionally obtained extracts.
50 Citations
10 Claims
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1. A process for selectively extracting at least one natural organic component which is soluble in tetrafluoroethane from natural organic material containing the natural organic component, the process comprising
a) contacting the organic material in a vessel with liquid tetrafluoroethane solvent to dissolve the at least one organic component in the solvent b) separating the solution of the at least one natural organic component in the solvent from the remaining organic material; - and
c) removing the solvent to isolate the at least one natural organic component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification