Method for obtaining aromatics and dyestuffs from bell peppers

US4400398A · kind A · utility

Assignee

• Fried Krupp · DE

Inventors

• Hubert Coenen · Essen, DE
• Rainer Hagen · Leverkusen, DE
• Manfred Knuth · Hamburg, DE

Key dates

• Filing date: Apr 5, 1982
• Grant date: Aug 23, 1983
• Expiry date: Apr 5, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23L27/11
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Method for obtaining aromatics and/or dyestuffs from bell peppers wherein red pepper is extracted with a solvent which is in a supercritical state and is gaseous under normal conditions. The extraction takes place at a pressure of >P.sub.k to 350 bar and a temperature of >T.sub.k to 70.degree. C. The extracted aromatics and/or dyestuffs are separated from the separated supercritical gas phase by lowering the density of the gas phase.