Process for the production of natural antioxidants

Details Process for the production of natural antioxidants Process for the production of natural antioxidants

1993-03-11

1995-07-18

Robinson, Douglas W.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Conjugate or complex

426425, 426429, 426542, 426654, 426655, A61K 3578

Patent

active

054339499

ABSTRACT:
In order to produce natural antioxidants by extraction of spices selected from the group of rosemary, thyme, sage and origano using compressed carbon dioxide and oreganic solvents
a) these spices are de-aromatized by extraction with carbon dioxide at a pressure of 80 to 300 bar and at a temperature of 10.degree. to 80.degree. C.,
b) the extraction residue obtained from step a) is treated with polar alcoholic solvents with 1 to 4 C atoms and/or non-polar hydrocarbons with 5 to 7 C atoms and
c) the solvent extract obtained from step b) is treated with active carbon and
d) the extract obtained from step c) is aftertreated with water at a temperature of 40.degree. to 100.degree. C. if desired after extensively removing the solvent.
Antioxidants obtained in this way are almost completely neutral with regard to flavour, odor as well as colour and are more effective than synthetic antioxidants.

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Tateo, et al., "Perfumer and Flavorist" 13:48, 1988.
Database WPIL, Week 9214, Derwent Publications Ltd., London, GB; AN 92-110776 & JP-A-4 053 895 & Patent Abstracts of Japan, vol. 016, No. 244 (1992).
Database WPIL, Week 0109, Derwent Publications Ltd., London, GB; AN 91-061468 & JP-A-3 009 984 (Lion Corp.) & Patent Abstracts of Japan vol. 015, No. 126 (1991).
Patent Abstracts of Japan, vol. 016, No. 128 (1992) & JP-A-32 93 001 & Database WPIL, Week 9206, Derwent Publication Ltd., London, GB; AN92-046375.

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