Fragrance extraction

Details Fragrance extraction Fragrance extraction

1994-02-14

1996-04-30

Robinson, Douglas W.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Conjugate or complex

514783, A61K 3578

Patent

active

055122850

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.

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patent: 3828017 (1974-08-01), Finley et al.
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patent: 4282250 (1981-08-01), Wheldon et al.
patent: 4367178 (1983-01-01), Heigel et al.
patent: 4490398 (1984-12-01), Behr et al.

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