Patent · US Expired

Process for the extraction of natural aromas from natural substances containing fat and oil

US5718937A · kind A · utility

19Cited by

1References

12Claims

0Family size

Assignee

SKW Trostberg Aktiengesellschaft · DE

Inventors

Jurgen Heidlas · Trostberg, DE
Ralf Kahleyss · Trostberg, DE
Andrea Simon · Chieming, DE

Key dates

Filing date	Nov 13, 1995
Grant date	Feb 17, 1998
Priority date	—
Expiry date	Nov 13, 2015

Classification

Technology area (CPC A)Human Necessities
CPC primaryA23L27/11
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process to extract natural aromas from natural substances containing fat and oil with compressed gases, wherein the natural substances are extracted in two steps in which in the first step liquid propane and/or butane at a temperature of .ltoreq.70.degree. C. and at a pressure of <500 bar and in the subsequent second step compressed carbon dioxide at a temperature of .ltoreq.50.degree. C. and at pressures between 70 and 500 bar are used as extraction agents.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.